Kings III 5:12-14

¹²And the Lord gave wisdom to Solomon as he promised him; and there was peace between Chiram and Solomon, and they made a covenant between them.

¹³And the king raised a levy out of all Israel, and the levy was thirty thousand men.

¹⁴And he sent them to Libanus, ten thousand taking turn every month: they were a month in Libanus and two months at home: and Adoniram was over the levy.