'Vow to the Lord' in the Bible

So Israel made a vow to the Lord, and said, “If You will indeed hand over these people to me, then I will utterly destroy their cities.”

If a man makes a vow to the Lord or swears an oath to bind himself with a pledge [of abstinence], he shall not break (violate, profane) his word; he shall do according to all that proceeds out of his mouth.

“Also if a woman makes a vow to the Lord and binds herself by a pledge [of abstinence], while living in her father’s house in her youth,