2 Samuel 5:2-6

Previously, when Saul was king over us, you were the one who led Israel out and in. And the Lord said to you, ‘You will shepherd My people Israel, and you will be a leader over Israel.’ ”

So all the elders of Israel came to the king at Hebron, and King David made a covenant with them before the Lord in Hebron; then they anointed David king over Israel.

David was thirty years old when he became king, and he reigned for forty years.

At Hebron he reigned over Judah for seven years and six months, and in Jerusalem he reigned for thirty-three years over all Israel and Judah.

Now the king and his men went to Jerusalem against the Jebusites, the inhabitants of the land; and they said to David, “You shall not come in here, but even those who are blind and those who limp will turn you away,” thinking, “David cannot enter here.”