Leviticus 27:2

Speak unto the children of Israel, and say unto them, When a man shall accomplish a vow, the persons shall be for Jehovah by thy estimation.

Numbers 6:2

Speak unto the children of Israel, and say unto them, When either man or woman shall make a special vow, the vow of a Nazirite, to separate himself unto Jehovah,

Deuteronomy 23:21-23

When thou shalt vow a vow unto Jehovah thy God, thou shalt not be slack to pay it: for Jehovah thy God will surely require it of thee; and it would be sin in thee.

Judges 11:30-31

And Jephthah vowed a vow unto Jehovah, and said, If thou wilt indeed deliver the children of Ammon into my hand,

Judges 11:39

And it came to pass at the end of two months, that she returned unto her father, who did with her according to his vow which he had vowed: and she knew not man. And it was a custom in Israel,

1 Samuel 1:11

And she vowed a vow, and said, O Jehovah of hosts, if thou wilt indeed look on the affliction of thy handmaid, and remember me, and not forget thy handmaid, but wilt give unto thy handmaid a man-child, then I will give him unto Jehovah all the days of his life, and there shall no razor come upon his head.

1 Samuel 1:28

therefore also I have granted him to Jehovah; as long as he liveth he is granted to Jehovah. And he worshipped Jehovah there.

Genesis 28:20-22

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 raiment to put on,

Numbers 21:2

And Israel vowed a vow unto Jehovah, and said, If thou wilt indeed deliver this people into my hand, then I will utterly destroy their cities.

Numbers 30:3

Also when a woman voweth a vow unto Jehovah, and bindeth herself by a bond, being in her father's house, in her youth,

Ecclesiastes 5:4-5

When thou vowest a vow unto God, defer not to pay it; for he hath no pleasure in fools: pay that which thou vowest.

Treasury of Scripture Knowledge

Summary

Speak unto the children of Israel, and say unto them, When a man shall make a singular vow, the persons shall be for the LORD by thy estimation.

Bible References

When

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 raiment to put on,
Numbers 6:2
Speak unto the children of Israel, and say unto them, When either man or woman shall make a special vow, the vow of a Nazirite, to separate himself unto Jehovah,
Numbers 21:2
And Israel vowed a vow unto Jehovah, and said, If thou wilt indeed deliver this people into my hand, then I will utterly destroy their cities.
Deuteronomy 23:21
When thou shalt vow a vow unto Jehovah thy God, thou shalt not be slack to pay it: for Jehovah thy God will surely require it of thee; and it would be sin in thee.
Judges 11:30
And Jephthah vowed a vow unto Jehovah, and said, If thou wilt indeed deliver the children of Ammon into my hand,
1 Samuel 1:11
And she vowed a vow, and said, O Jehovah of hosts, if thou wilt indeed look on the affliction of thy handmaid, and remember me, and not forget thy handmaid, but wilt give unto thy handmaid a man-child, then I will give him unto Jehovah all the days of his life, and there shall no razor come upon his head.

American Standard Version Public Domain