2 Samuel 5:2-4

New Revised Standard Version, Anglicised Catholic Edition

² For some time, while Saul was king over us, it was you who led out Israel and brought it in. The Lord said to you: It is you who shall be shepherd of my people Israel, you who shall be ruler over Israel.’ ³ So all the elders of Israel came to the king at Hebron; and King David made a covenant with them at Hebron before the Lord, and they anointed David king over Israel. ⁴ David was thirty years old when he began to reign, and he reigned for forty years.