Exodus 17 Summary and Study Guide

Rephidim means resting places. Israel arrived there at God’s own command, found no water in it, and before they left, an army had come for them. This Exodus 17 summary and study guide follows what God did in that camp.

Setting the Stage

Israel had walked out of Egypt through a sea that opened for them, watched the army behind them drown, and stood on the far shore singing. Since that morning God had answered every crisis they met. Three days later the water at Marah was too bitter to drink, and God made it sweet. Then the food ran out, and God rained bread on the camp every morning.

Each answer faded from memory by the time the next crisis arrived, and that pattern carries straight into Exodus 17. They break camp again, travel on, and stop where there is no water. This time the question they ask out loud is whether God is with them at all.

Comprehensive Exodus 17 Summary

Israel leaves the wilderness of Sin at God’s command and camps at Rephidim, where there is no water. The people turn on Moses and demand that he give them water to drink. Moses tells them their quarrel is not with him, and asks why they are putting God to the test.

The thirst grows worse, and the demand hardens into an accusation: Moses brought them out of Egypt to kill them, their children and their livestock. Moses cries out to God that the people are close to stoning him.

God tells Moses to go on ahead of the people, to take some of the elders with him as witnesses, and to carry the same rod he had struck the Nile with. God promises to stand on the rock at Horeb, and tells Moses to strike it. Moses strikes it in front of the elders, and water comes out. He names the place Massah and Meribah, testing and quarrelling, because Israel had asked whether God was among them.

Amalek then attacks Israel at that same camp. Moses sends Joshua out with picked men to fight, and climbs a hill with Aaron and Hur, carrying the rod. While Moses holds his hand up Israel prevails, and when he lowers it Amalek prevails.

His hands grow heavy, so the two men seat him on a stone and hold his hands steady until sunset, and Joshua breaks Amalek with the sword. God tells Moses to write the account down and repeat it to Joshua, promising to blot out Amalek’s memory. Moses raises an altar at Rephidim and gives it the name Jehovah-nissi.

One Word Summary

• Banner: the name Moses cut into the altar, and the chapter’s own last word about God.
• Testing: running both ways, Israel testing God at Massah and God testing Israel through want.
• Held: the hands that had to stay up, and the two men who held them.

In One Sentence

Israel accused Moses of leading them out to die of thirst, so God stood on a rock at Horeb and gave them water from it, and when Amalek attacked at the same camp Joshua fought while Aaron and Hur held Moses’ hands up until sunset, after which Moses built an altar and called it Jehovah-nissi.

Theme of Exodus 17

Exodus 17 is about who is holding Israel up. The people ask out loud whether God is among them, and the chapter answers twice over. God gives water to the people who are accusing Him, and He gives victory to an army that could not have won it on its own.

Running alongside that are two ideas the chapter keeps pairing: God supplies the means as well as the outcome, and He takes an attack on His people as an attack on Himself. Rephidim is where Israel learned both, and the chapter keeps the record of the learning as well as the rescue.

Exodus 17 Outline

• Exodus 17:1: Israel travels on from the wilderness of Sin at God’s command and camps at Rephidim, where there is no water.
• Exodus 17:2-3: The people demand water from Moses, and their demand hardens into a charge that he has brought them out to kill them.
• Exodus 17:4: Moses cries out to God that the people are almost ready to stone him.
• Exodus 17:5-6: God sends Moses ahead with the elders and the Nile-striking rod, stands on the rock at Horeb, and water comes out when Moses strikes it.
• Exodus 17:7: Moses names the place Massah and Meribah, because Israel had asked whether the LORD was among them.
• Exodus 17:8-9: Amalek attacks at Rephidim, and Moses sends Joshua to fight while he takes the rod of God to the hilltop.
• Exodus 17:10-11: Israel prevails while Moses holds his hand up, and Amalek prevails when he lowers it.
• Exodus 17:12-13: Aaron and Hur seat Moses on a stone and hold his hands steady until sunset, and Joshua defeats Amalek.
• Exodus 17:14: God tells Moses to write the account in a book and repeat it to Joshua, promising to blot out the memory of Amalek.
• Exodus 17:15-16: Moses builds an altar named Jehovah-nissi and declares the LORD’s war with Amalek from generation to generation.

For where this chapter falls in the wider story, see our Book of Exodus summary by chapter.

An Altar Called Jehovah-nissi

The chapter ends with something a reader stops on. Moses builds an altar and gives it a name, which almost never happens in Scripture. Jacob named one at Shechem (Genesis 33:20), and after that the practice is hard to find.

“And Moses built an altar, and called the name of it Jehovah-nissi: For he said, Because the LORD hath sworn that the LORD will have war with Amalek from generation to generation.”

Exodus 17:15-16

Moses builds an altar and names it “the LORD is my banner”, and he explains the name by pointing to God’s standing war with Amalek. The name itself appears nowhere else in the Bible.

A banner in the ancient world was a rigid pole with a bright device fixed at the top, raised above a battlefield so that a soldier separated from his own side could find where to run. Cloth flapping in the wind came much later. Israel had a rallying point that day, and the altar names who it was.

Moses had led the nation, Joshua had led the army, and the altar carries neither name. It carries God’s. Where the name falls says something too.

God had destroyed Pharaoh’s army at the sea without Israel lifting a finger, and Scripture records no altar there. This name comes after a battle Israel fought.

Observations from Exodus 17

The people’s question was already answered before they asked it (17:6-7)

God tells Moses, “Behold, I will stand before thee there upon the rock in Horeb” (17:6). God says He will be standing there on the rock, in front of Moses, when the rod comes down.

One verse later Moses names the place after what Israel had been saying: “Is the LORD among us, or not?” (17:7). They wanted to know whether God was with them.

He had already said He would be, and He had already shown it in a pillar of cloud they could see from anywhere in the camp. They asked that question in full daylight, with the evidence standing over them, which is part of why Scripture treats it as testing God rather than as honest doubt.

The rod belongs to two people (17:5, 17:9)

God calls it “thy rod, wherewith thou smotest the river” (17:5). God calls it Moses’ rod, and identifies it by the last thing it did, striking the Nile.

Four verses later Moses calls it something else: “the rod of God in mine hand” (17:9). Moses calls it God’s rod, which he happens to be holding.

The same stick, named twice, and each speaker gives the credit away. It is also the same rod that turned a river to blood, now used to bring water out of stone. The instrument of Egypt’s punishment becomes the instrument that keeps Israel alive.

The chapter is organised around raised hands (17:4, 17:11, 17:12)

Hands come up at every turn in Exodus 17. Israel’s hands are almost picking up stones to kill Moses (17:4). Moses’ hands are up on the hill, and the battle below moves with them (17:11). When Moses’ arms give out, two other men’s hands take the weight (17:12).

Two kinds of raised hand sit side by side here. The people raise theirs against the man God gave them, and God’s answer is water. Moses raises his toward God, and God’s answer is a victory.

God tells Moses to write, and it is the first time (17:14)

“And the LORD said unto Moses, Write this for a memorial in a book” (17:14). God tells Moses to put the account down in writing so it will be remembered.

This is the first place in the Bible where God commands anyone to write something down. What He wants preserved is a record of what Amalek did and what He intends to do about it, handed to Joshua, who would still be dealing with Amalek long after Moses was gone. The water miracle goes unmentioned, and so does any human name.

Two Crises, One Shape

Readers often find Exodus 17 puzzling for a reason that has nothing to do with what it teaches. It looks like two unrelated stories filed under one chapter number: a water shortage, then a battle. They belong together, and the way they are built shows it.

Both halves run through the same three stages. Danger arrives, God delivers, and a name is left behind to mark it.

• The danger: no water at Rephidim (17:1-3), then an army at Rephidim (17:8).
• The deliverance: God stands on the rock and water comes (17:4-6), then God gives the victory while Moses’ hands stay up (17:9-13).
• The name: Massah and Meribah (17:7), then Jehovah-nissi (17:15-16).

The two names are what make the pairing worth noticing. One is a record of Israel’s failure, kept on the map so nobody could forget it. The other is a record of God’s victory. The chapter files both, side by side, and refuses to let the reader keep only the flattering one.

Difficult Verses Explained

Why Was Moses Told to Strike the Rock Here, When It Later Cost Him the Promised Land?

Because these are two different events, about forty years apart, with two different commands. In Exodus 17 God told Moses to strike the rock, and Moses struck it once and was not rebuked for it.

The event readers are thinking of is in Numbers 20, at Kadesh, near the end of the wilderness years. There God told Moses to speak to the rock (Numbers 20:8).

Moses struck it instead, twice, after calling the people rebels (Numbers 20:10-11), and God gave the reason for the punishment plainly: “Because ye believed me not, to sanctify me in the eyes of the children of Israel” (Numbers 20:12). God said Moses had not trusted Him or treated Him as holy in front of Israel.

Two rocks, two places, two commands. Obedience is what separates them, and Exodus 17 has nothing in it that God held against Moses.

How Could a Battle Depend on Whether One Man’s Hands Were Up?

The chapter does not give God’s reason outright, but it shows the effect. Israel could not see God fighting for them. They could see whether Moses’ hands were up, and they could see what happened each time those hands came down.

Most readers through history have understood the raised hands as prayer, and the oldest Jewish translations of this passage say so outright, rendering verse 11 as Moses lifting his hands in prayer. A few teachers have argued instead that Moses was holding the rod aloft as a battle standard for the troops to see.

The text itself does not settle it in one word, though verse 12 tells against the standard reading: both of Moses’ hands are being held up, one by Aaron and one by Hur, and a man signalling an army does not need two hands on a pole.

Either way the lesson the chapter draws is the same one. Joshua’s sword did not decide that day.

Why Does My KJV End the Chapter Differently From Other Bibles?

Because the Hebrew of verse 16 is unusually compressed, and translators have read it two ways. The King James has “Because the LORD hath sworn that the LORD will have war with Amalek from generation to generation” (17:16), which makes the verse an oath God swears. The King James margin, and most modern translations, read it as a hand lifted against God’s throne.

The reason many scholars prefer the second reading is a matter of how God swears elsewhere in Scripture. God swears by Himself, as He does with Abraham: “By myself have I sworn, saith the LORD” (Genesis 22:16). God takes an oath on His own name, because there is nothing greater to swear by. An oath sworn on His throne would be unlike anything else He does.

Read either way, the verse says the same thing about Amalek. They had not merely attacked a group of travellers. They had raised a hand against the God those travellers belonged to, and the war that follows is His.

Common Misunderstandings

• The Meribah in this chapter is not the only Meribah. The same name attaches to a second place about forty years later, where Israel again quarrelled over water (Numbers 20:13), and it is that later one Deuteronomy has in view when it speaks of Meribah-Kadesh (Deuteronomy 32:51). When a psalm or a sermon mentions Meribah, it is worth checking which one is meant.
• God’s sentence on Amalek is not the same as the command about Canaan. Some readings fold the two together, and they are different. The Canaanite nations were judged for what they practised in the land Israel was given (Leviticus 18:24-25). Amalek was judged for what they did to Israel on the road, striking the exhausted and the stragglers at the back of the column, “and he feared not God” (Deuteronomy 25:18). Amalek had no fear of God in them. The charge is about conduct rather than territory, and the text states it.

Christ Connection

Paul reaches back to this chapter and names what the rock was. Writing about Israel in the wilderness he says they “did all drink the same spiritual drink: for they drank of that spiritual Rock that followed them: and that Rock was Christ” (1 Corinthians 10:4).

They all drank the same drink God gave them, and the rock it came from stood for Christ. The connection comes from the apostle himself, telling the church what the rock meant, rather than from imagery a later reader assembled.

Once that is in place the rest of the chapter opens toward Him:

• The rock is struck, and life comes out. The rod that had carried judgment on Egypt comes down on the rock, and what flows from it keeps alive the people who deserved judgment themselves. Isaiah says of the Servant that He was “stricken, smitten of God, and afflicted” (Isaiah 53:4). Isaiah says God struck Him.
• The water points toward the Spirit. At the Feast of Tabernacles, the very feast where Israel remembered God giving water in the desert, Jesus said, “If any man thirst, let him come unto me, and drink” (John 7:37). Anyone who is thirsty should come to Him. John adds that He was speaking of the Spirit believers would receive (John 7:39).
• The rock is struck once. Moses is told to strike here and told to speak forty years later, and Hebrews says of Christ that “by one offering he hath perfected for ever them that are sanctified” (Hebrews 10:14). One sacrifice finished the work for good, and there is no second striking.
• The hands stay up, and the people below hold. Moses on the hill with his hands raised while Israel fights in the valley pictures what Hebrews states of Christ, who “ever liveth to make intercession for them” (Hebrews 7:25). He is always alive and always praying for His people.

That last connection carries its own limit, and the chapter puts it in plain sight. Moses’ hands failed. They grew heavy, they came down, and men had to hold them up so the day could be won.

The intercession Hebrews describes has no such weakness in it, because the priest who makes it does not die and does not tire (Hebrews 7:24-25). Exodus 17 gives us the picture along with the reason it was never enough on its own.

When, Where, and Why

• When: Roughly two months after Israel left Egypt. Exodus 19:1 puts them at Sinai in the third month, and Rephidim is the last camp before it (Exodus 19:2), so this falls in the late spring of that first year on the road.
• Where: Rephidim, a camp between the wilderness of Sin and Sinai, with the rock at Horeb close enough for Moses and the elders to reach it and return. Many scholars place Rephidim in a Sinai valley that usually carries a stream, which would explain why a camp named for rest was chosen and why finding it dry was such a blow. The exact site is not certain, and the rock itself cannot be identified today.
• Why: Moses is writing the record of how God made a nation out of freed slaves, and this camp is where two lessons were taught that Israel would need for forty years. God supplies what His people cannot supply for themselves, and God treats an attack on them as an attack on His own throne. Verse 14 says the second lesson was written down on purpose, for Joshua and for everyone after him.

Key Verses

“And he called the name of the place Massah, and Meribah, because of the chiding of the children of Israel, and because they tempted the LORD, saying, Is the LORD among us, or not?”

Exodus 17:7

Moses named the place after the arguing and the testing, because Israel had asked out loud whether God was with them. A miracle had just happened there, and the name on the map records the complaint rather than the water.

“And it came to pass, when Moses held up his hand, that Israel prevailed: and when he let down his hand, Amalek prevailed.”

Exodus 17:11

Whenever Moses’ hand was up, Israel was winning, and whenever it dropped, Amalek was. This is the verse that tells the reader where the battle was actually being decided.

“But Moses’ hands were heavy; and they took a stone, and put it under him, and he sat thereon; and Aaron and Hur stayed up his hands, the one on the one side, and the other on the other side; and his hands were steady until the going down of the sun.”

Exodus 17:12

Moses’ arms gave out, so they found him a stone to sit on and each man held up one arm until the sun set. God gave the victory through a man who could not manage the task by himself.

Key Lessons from Exodus 17

• Being led by God is not a promise of easy ground, since Israel camped at Rephidim by God’s own command and found no water there (17:1).
• A complaint about what God has provided is finally a complaint about God, which is why Moses told the people their quarrel was not with him (17:2).
• Moses carried the accusation to God rather than arguing it out with the people who made it (17:4).
• God sent Moses back out in front of a crowd ready to stone him, and gave him witnesses to walk with rather than an escape (17:5).
• Nobody holds their own hands up all day, and Moses needed two men beside him to finish what God had given him to do (17:12).

To go deeper into what this chapter asks of the reader, read our full study: Lessons from Exodus 17.

Bible Study Questions

1. Read Exodus 17:1. What does it change about the story that Israel arrived at a waterless camp under God’s direction rather than by wandering off course?
2. In verse 2 Moses tells the people, “Why chide ye with me? wherefore do ye tempt the LORD?” What is the difference between telling God you are desperate and putting God on trial?
3. God tells Moses to take the elders with him in verse 5. Why do you think witnesses mattered for this particular miracle?
4. Israel asks in verse 7 whether the LORD is among them. What had God already done for them that should have answered it?
5. Moses left two names behind at Rephidim, Massah and Meribah in verse 7 and Jehovah-nissi in verse 15. Which of the two better describes how you remember your own hard seasons, and why?
6. Verse 12 says Moses’ hands were heavy and two men held them up. Who has done that for you, if anyone has, and whose hands could you help hold?
7. Verse 14 is the first time God commands anyone in Scripture to write something down. What does it say about God that He wanted this particular day remembered?

When you have worked through the chapter, test what you remember with our Exodus 17 quiz with answers.

Frequently Asked Questions

Exodus 17, The Full Text (KJV)

Read the full chapter below for reference.

1 And all the congregation of the children of Israel journeyed from the wilderness of Sin, after their journeys, according to the commandment of the LORD, and pitched in Rephidim: and there was no water for the people to drink.

2 Wherefore the people did chide with Moses, and said, Give us water that we may drink. And Moses said unto them, Why chide ye with me? wherefore do ye tempt the LORD?

3 And the people thirsted there for water; and the people murmured against Moses, and said, Wherefore is this that thou hast brought us up out of Egypt, to kill us and our children and our cattle with thirst?

4 And Moses cried unto the LORD, saying, What shall I do unto this people? they be almost ready to stone me.

5 And the LORD said unto Moses, Go on before the people, and take with thee of the elders of Israel; and thy rod, wherewith thou smotest the river, take in thine hand, and go.

6 Behold, I will stand before thee there upon the rock in Horeb; and thou shalt smite the rock, and there shall come water out of it, that the people may drink. And Moses did so in the sight of the elders of Israel.

7 And he called the name of the place Massah, and Meribah, because of the chiding of the children of Israel, and because they tempted the LORD, saying, Is the LORD among us, or not?

8 Then came Amalek, and fought with Israel in Rephidim.

9 And Moses said unto Joshua, Choose us out men, and go out, fight with Amalek: to morrow I will stand on the top of the hill with the rod of God in mine hand.

10 So Joshua did as Moses had said to him, and fought with Amalek: and Moses, Aaron, and Hur went up to the top of the hill.

11 And it came to pass, when Moses held up his hand, that Israel prevailed: and when he let down his hand, Amalek prevailed.

12 But Moses’ hands were heavy; and they took a stone, and put it under him, and he sat thereon; and Aaron and Hur stayed up his hands, the one on the one side, and the other on the other side; and his hands were steady until the going down of the sun.

13 And Joshua discomfited Amalek and his people with the edge of the sword.

14 And the LORD said unto Moses, Write this for a memorial in a book, and rehearse it in the ears of Joshua: for I will utterly put out the remembrance of Amalek from under heaven.

15 And Moses built an altar, and called the name of it Jehovahnissi:

16 For he said, Because the LORD hath sworn that the LORD will have war with Amalek from generation to generation.