Kings III 21:21

21 And the king of Israel went forth, and took all the horses and the chariots, and smote with a great slaughter in Syria.

Kings III 21:21 In-Context

19 and let not the young men the heads of the districts go forth of the city. And the force that was behind them
20 smote each one the man next to him; and each one a second time smote the man next to him: and Syria fled, and Israel pursued them; and the son of Ader, the king of Syria, escapes on the horse of a horseman.
21 And the king of Israel went forth, and took all the horses and the chariots, and smote with a great slaughter in Syria.
22 And the prophet came to the king of Israel, and said, Strengthen thyself, and observe, and see what thou shalt do; for at the return of the year the son of Ader king of Syria comes up against thee.
23 And the servants of the king of Syria, even they said, The God of Israel a God of mountains, and not a God of valleys; therefore has he prevailed against us: but if we should fight against them in the plain, verily we shall prevail against them.

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