1 Kings 13:3

3 That same day the man of God gave a sign: “This is the sign the LORD has declared: The altar will be split apart and the ashes on it will be poured out.”

Read 1 Kings 13:3 Using Other Translations

And he gave a sign the same day, saying, This is the sign which the LORD hath spoken; Behold, the altar shall be rent, and the ashes that are upon it shall be poured out.
And he gave a sign the same day, saying, "This is the sign that the LORD has spoken: 'Behold, the altar shall be torn down, and the ashes that are on it shall be poured out.'"
That same day the man of God gave a sign to prove his message. He said, “The LORD has promised to give this sign: This altar will split apart, and its ashes will be poured out on the ground.”

What does 1 Kings 13:3 mean?

John Gill's Exposition of the Bible
1 Kings 13:3

And he gave a sign the same day, saying, this is the sign
which the Lord hath spoken
As a confirmation of the truth of what the prophet had said, and for the proof of his being a true prophet of the Lord:

behold, the altar shall be rent;
of itself, by an invisible hand, by the power of God:

and the ashes that are upon it shall be poured out;
signifying it should be entirely demolished, not only shaken but destroyed, so as not to be capable of retaining the ashes on it; this was an emblem of the utter abolition of idolatry here in future times.

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