'Made a Vow' in the Bible

Then Jacob made a vow, saying, “If God will be with me and will keep me on this journey that I take, and will give me food to eat and garments to wear,

I am the God of Bethel, where you anointed a pillar, where you made a vow to Me; now arise, leave this land, and return to the land of your birth.’”

So Israel made a vow to the Lord and said, “If You will indeed deliver this people into my hand, then I will utterly destroy their cities.”

Jephthah made a vow to the Lord and said, “If You will indeed give the sons of Ammon into my hand,

She made a vow and said, “O Lord of hosts, if You will indeed look on the affliction of Your maidservant and remember me, and not forget Your maidservant, but will give Your maidservant a son, then I will give him to the Lord all the days of his life, and a razor shall never come on his head.”