Judges 11:30
And Jephthah vowed a vow unto the LORD, and said, If you shall without fail deliver the children of Ammon into my hands,
Genesis 28:20
And 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,
1 Samuel 1:11
And she vowed a vow, and said, O LORD of hosts, if you will indeed look on the affliction of your handmaid, and remember me, and not forget your handmaid, but will give unto your handmaid a male child, then I will give him unto the LORD all the days of his life, and there shall no razor come upon his head.
Numbers 30:2-16
If a man vows a vow unto the LORD, or swears an oath to bind his soul with a bond; he shall not break his word, he shall do according to all that proceeds out of his mouth.
Ecclesiastes 5:1-2
Guard your steps when you go to the house of God, and be more ready to hear, than to give the sacrifice of fools: for they consider not that they do evil.
Ecclesiastes 5:4-5
When you vow a vow unto God, defer not to pay it; for he has no pleasure in fools: pay that which you have vowed.