1 Kings 5:9-14

9My servants will bring the logs down from Lebanon to the [Mediterranean] sea, and I will have them made into rafts to go by sea to the place (port) that you direct me; then I will have them broken up there, and you shall carry them away. Then you shall return the favor by providing food for my household.”

10So Hiram gave Solomon all the cedar and cypress timber he desired,

11and Solomon gave Hiram 20,000 kors of wheat as food for his household, and 20 kors of pure [olive] oil. Solomon gave all these to Hiram each year.

12The Lord gave Solomon wisdom, just as He promised him; and there was peace between Hiram and Solomon, and the two of them made a treaty.

13King Solomon levied forced laborers from all Israel; and the forced laborers numbered 30,000 men.

14He sent them to Lebanon, 10,000 a month in shifts; one month they were in Lebanon and two months at home. Adoniram was in charge of the forced laborers.