'Vow' in the Bible

Jacob vowed a vow, saying, "If God will be with me, and will keep me in this way that I go, and will give me bread to eat, and clothing to put on,

I am the God of Bethel, where you anointed a pillar, where you vowed a vow to me. Now arise, get out from this land, and return to the land of your birth.'"