Isaiah 54:17

No weapon formed against you shall prosper, and you will refute every tongue that accuses you. This is the heritage of the servants of the LORD, and their vindication is from Me,” declares the LORD.

Berean Standard Bible

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Study note

Setting — The LORD speaks to Zion (the personified remnant of Israel) in a moment of restoration, immediately after declaring that He Himself created the destroyer (v. 16). This is a covenantal promise of vindication, not a general benediction.

The words — כְּלִי (ke-li, "vessel, thing formed for a purpose") broadens "weapon" to any instrument made for a task; יִצְלָח (yitz-lach, "it will succeed, be effective") is a strong verb of successful outcome, not mere survival.

The thread — Isaiah 54:15 states the same principle in negative form ("whoever assails you will fall before you"); John 10:28 echoes the "no one can snatch" logic; Romans 8:28 generalizes the underlying claim that God's purpose governs all events for His people.

Why it lands — The verse is framed as "heritage" (inheritance) of the servants of the LORD, which ties it to covenant identity rather than making it available as a standalone formula. It asks the reader to hold the promise as belonging to a people, not to invoke it as a personal talisman.

Drafted by a language model from the text, its original words and its cross-references, then checked against them. It can still be wrong: open the verse in the app to report it.

The Hebrew words

King James Version

No weapon that is formed against thee shall prosper; and every tongue that shall rise against thee in judgment thou shalt condemn. This is the heritage of the servants of the Lord, and their righteousness is of me, saith the Lord.

Cross-references

Romans 8:28 And we know that God works all things together for the good of those who love Him, who are called according to His purpose.
Isaiah 54:15 If anyone attacks you, it is not from Me; whoever assails you will fall before you.
John 10:28 I give them eternal life, and they will never perish. No one can snatch them out of My hand.
Isaiah 50:8 The One who vindicates Me is near. Who will dare to contend with Me? Let us confront each other! Who has a case against Me? Let him approach Me!
Romans 8:1 Therefore, there is now no condemnation for those who are in Christ Jesus.
Psalms 32:6 Therefore let all the godly pray to You while You may be found. Surely when great waters rise, they will not come near.
Psalms 2:1 Why do the nations rage and the peoples plot in vain?
Matthew 16:18 And I tell you that you are Peter, and on this rock I will build My church, and the gates of Hades will not prevail against it.
Revelation 12:10 And I heard a loud voice in heaven saying: “Now have come the salvation and the power and the kingdom of our God, and the authority of His Christ. For the accuser of our brothers has been thrown down—he who accuses them day and night before our God.
Daniel 6:20 When he reached the den, he cried out in a voice of anguish, “O Daniel, servant of the living God, has your God, whom you serve continually, been able to deliver you from the lions?”