Kings III 21:26

26 And it came to pass at the return of the year, that the son of Ader reviewed Syria, and went up to Apheca to war against Israel.

Kings III 21:26 In-Context

24 And do thou this thing: Send away the kings, each one to his place, and set princes in their stead.
25 And we will give thee army according to the army that was destroyed, and cavalry according to the cavalry, and chariots according to the chariots, and we will fight against them in the plain, and we shall prevail against them. And he hearkened to their voice, and did so.
26 And it came to pass at the return of the year, that the son of Ader reviewed Syria, and went up to Apheca to war against Israel.
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.

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