'Labor' in the Bible

Ahishar was in charge of the household (palace); and Adoniram the son of Abda was in charge of the forced labor.

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

Now this is the account of the forced labor which King Solomon conscripted to build the house of the Lord, his own house, the Millo (fortification), the wall of Jerusalem, [and the fortress cities of] Hazor, Megiddo, and Gezer.

The man Jeroboam was a brave warrior and when Solomon saw that the young man was industrious, he put him in charge of all the forced labor of the house of Joseph.

Then King Rehoboam sent Adoram, who was in charge of the forced labor [to represent him], and all Israel stoned him to death. And King Rehoboam quickly mounted his chariot to escape to Jerusalem.