'Swore' in the Bible

that I may establish the oath which I swore to your fathers, to give them a land flowing with milk and honey, as at this day. Then answered I, and said, Amen, Yahweh.

and gave them this land, which you swore to their fathers to give them, a land flowing with milk and honey;

So Zedekiah the king swore secretly to Jeremiah, saying, As Yahweh lives, who made us this soul, I will not put you to death, neither will I give you into the hand of these men who seek your life.

Gedaliah the son of Ahikam the son of Shaphan swore to them and to their men, saying, Don't be afraid to serve the Chaldeans: dwell in the land, and serve the king of Babylon, and it shall be well with you.