Kings III 21:13

13 And, behold, a prophet came to Achaab king of Israel, and said, Thus saith the Lord, Hast thou seen this great multitude? behold, I give it this day into thine hands; and thou shalt know that I the Lord.

Kings III 21:13 In-Context

11 And the king of Israel answered and said, Let it be sufficient; let not the humpbacked boast as he that is upright.
12 And it came to pass when he returned him this answer, he and all the kings with him were drinking in tents: and he said to his servants, Form a trench. And they made a trench against the city.
13 And, behold, a prophet came to Achaab king of Israel, and said, Thus saith the Lord, Hast thou seen this great multitude? behold, I give it this day into thine hands; and thou shalt know that I the Lord.
14 And Achaab said, Whereby? And he said, Thus saith the Lord, by the young men of the heads of the districts. And Achaab said, Who shall begin the battle? and he said, Thou.
15 And Achaab numbered the young men the heads of the districts, and they were two hundred and thirty: and afterwards he numbered the people, every man fit for war, seven thousand.

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