Kings III 21:29

29 And they encamp one over against the other before them seven days. And it came to pass on the seventh day that the battle drew on, and Israel smote Syria, a hundred thousand footmen in one day.

Kings III 21:29 In-Context

27 And the children of Israel were numbered, and came to meet them: and Israel encamped before them as two little flocks of goats, but Syria filled the land.
28 And there came the man of God, and said to the king of Israel, Thus saith the Lord, Because Syria has said, The Lord God of Israel a God of the hills, and he not a God of the valleys, therefore will I give this great army into thy hand, and thou shalt know that I the Lord.
29 And they encamp one over against the other before them seven days. And it came to pass on the seventh day that the battle drew on, and Israel smote Syria, a hundred thousand footmen in one day.
30 And the rest fled to Apheca, into the city; and the wall fell upon twenty-seven thousand men that were left: and the son of Ader fled, and entered into an inner chamber, into a closet.
31 And he said to his servants, I know that the kings of Israel are merciful kings: let us now put sackcloth upon our loins, and ropes upon our heads, and let us go forth to the king of Israel, if by any means he will save our souls alive.

Footnotes 1

The Brenton translation of the Septuagint is in the public domain.