Thus saith the LORD God of Israel; Behold, I will turn back the weapons of war that are in your hands, wherewith ye fight against the king of Babylon, and against the Chaldeans, which besiege you without the walls, and I will assemble them into the midst of this city.

JEREMIAH 21:4KJV
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What does Jeremiah 21:4 mean?

Jeremiah 21:4 describes God telling the people of Jerusalem that He will turn their own weapons back against them as they try to fight the king of Babylon and the Chaldeans who are besieging the city. Instead of helping them defend themselves, God says He will gather these weapons inside Jerusalem itself.

In this verse, God speaks through the prophet Jeremiah to the people and leaders of Jerusalem during a time when Babylon’s army is surrounding the city. The people hope for God’s help in battle, but God’s message is that their efforts to resist will fail because He Himself is opposing them. The verse sets a tone of warning and shows that the siege is not just a military event but also a result of God’s decision.

The Hebrew behind Jeremiah 21:4

  • “Turn back” (סָבַב, savav): This word means to turn around or reverse direction. Here, it emphasizes that God will actively cause the weapons meant for defense to become useless or even harmful to their owners.
  • “Weapons” (כְּלִי, keli): This word refers to tools or instruments, in this case, weapons of war. The focus is on the very things the people trust for protection being turned against them.
  • “Assemble” (אָסַף, asaf): This means to gather or collect. God says He will gather the weapons into the midst of the city, showing that the tools for battle will end up inside Jerusalem, not outside defending it.

Why Jeremiah 21:4 matters

  • Jeremiah 21:4 clarifies that the defeat of Jerusalem is not just because of Babylon’s strength, but because God Himself is acting against the city’s defenders.
  • The verse corrects any assumption that religious identity or ritual alone would guarantee God’s protection, showing that God’s support depends on the people’s relationship with Him.
  • This verse sets up the rest of Jeremiah 21, where God continues to explain the consequences of the people’s choices and the seriousness of the coming judgment.

Where else these words appear

“besiege” Hebrew H6696 · used in 38 verses

  • Exodus 23:22 But if thou shalt indeed obey his voice, and do all that I speak; then I will be an enemy unto thine enemies, and an adversary unto thine adversaries.
  • 1 Kings 15:27 And Baasha the son of Ahijah, of the house of Issachar, conspired against him; and Baasha smote him at Gibbethon, which belonged to the Philistines; for Nadab and all Israel laid siege to Gibbethon.
  • 2 Chronicles 28:20 And Tilgathpilneser king of Assyria came unto him, and distressed him, but strengthened him not.

“Chaldeans” Hebrew H3778 · used in 80 verses

  • Genesis 11:28 And Haran died before his father Terah in the land of his nativity, in Ur of the Chaldees.
  • Jeremiah 32:5 And he shall lead Zedekiah to Babylon, and there shall he be until I visit him, saith the LORD: though ye fight with the Chaldeans, ye shall not prosper.
  • Jeremiah 50:1 The word that the LORD spake against Babylon and against the land of the Chaldeans by Jeremiah the prophet.

“walls” Hebrew H2346 · used in 123 verses

  • Exodus 14:22 And the children of Israel went into the midst of the sea upon the dry ground: and the waters were a wall unto them on their right hand, and on their left.
  • Nehemiah 1:3 And they said unto me, The remnant that are left of the captivity there in the province are in great affliction and reproach: the wall of Jerusalem also is broken down, and the gates thereof are burned with fire.
  • Isaiah 30:13 Therefore this iniquity shall be to you as a breach ready to fall, swelling out in a high wall, whose breaking cometh suddenly at an instant.

“back” Hebrew H5437 · used in 147 verses

  • Genesis 2:11 The name of the first is Pison: that is it which compasseth the whole land of Havilah, where there is gold;
  • 2 Samuel 18:30 And the king said unto him, Turn aside, and stand here. And he turned aside, and stood still.
  • Psalms 32:10 Many sorrows shall be to the wicked: but he that trusteth in the LORD, mercy shall compass him about.