Genesis 41:46

46Joseph was thirty years old when he aentered the service of Pharaoh king of Egypt. And Joseph went out from the presence of Pharaoh and went through all the land of Egypt.

1 Samuel 16:21-22

21And David came to Saul band entered his service. And Saul loved him greatly, and he became his armor-bearer. 22And Saul sent to Jesse, saying, “Let David remain in my service, for he has found favor in my sight.”

1 Kings 10:8

8 cHappy are your men! Happy are your servants, who continually stand before you and hear your wisdom!
Copyright information for ESV