'Vow' in the Bible

And Jacob made a vow saying, "If God will be with me and protect me on this way that I am going, and gives me food to eat and clothing to wear,

I [am] the God of Bethel where you anointed a stone pillar, where you made a vow to me. Now get up, go out from this land and return to the land of your birth.'"

When {the time of Israel's death drew near}, he called to his son, to Joseph. And he said to him, "If I have found favor in your eyes, please put your hand under my thigh, that you might [vow] to deal kindly and faithfully with me. Please do not bury me in Egypt,