In 1 Kings 13:5, the altar splits exactly as prophesied — this is the direct fulfillment of the sign given in verse 3.

Jeremiah 44:29 gives a similar sign of judgment on Egypt — both are signs that confirm God's word of punishment will come true.

Deuteronomy 13:1-3 warns that signs can be used by false prophets, contrasting with the true sign given in 1 Kings 13:3.

Deuteronomy 13:2 warns that even fulfilled signs can come from false prophets, while here the sign is from a true prophet — a contrast in application.

1 Samuel 2:34 gives a predictive sign to Eli about his sons' death, similar to the predictive sign of altar destruction in 1 Kings 13:3.

In Isaiah 7:11-14, God offers a sign (Immanuel) as confirmation, similar to the altar sign here. Both are prophetic signs of divine intervention.

In Isaiah 38:6-8, the shadow on the sundial moves as a sign to Hezekiah, like the altar splitting here — both miraculous signs authenticating God's word.

In Matthew 12:38-40, Jesus refuses a sign except Jonah, contrasting with the immediate sign given here. Both involve a sign as authentication, but with different responses.