1 Kings 5:13

Then King Solomon raised up a labor force out of all Israel; and the labor force was thirty thousand men.

Surrounding context

5:12 So the LORD gave Solomon wisdom, as He had promised him; and there was peace between Hiram and Solomon, and the two of them made a treaty together.

5:13 Then King Solomon raised up a labor force out of all Israel; and the labor force was thirty thousand men.

5:14 And he sent them to Lebanon, ten thousand a month in shifts: they were one month in Lebanon and two months at home; Adoniram was in charge of the labor force.

Translation and sources