Leviticus 27:2

"Speak to the {Israelites}, and say to them, 'When a man makes a vow according to your proper value [of] persons to Yahweh,

Numbers 6:2

"Speak to the {Israelites} and say to them, 'When a man or a woman takes a special vow, a vow of a {Nazirite}, to keep separate for Yahweh,

Deuteronomy 23:21-23

"{When you make a vow} to Yahweh your God, you shall not postpone {fulfillment of it}, [for] certainly Yahweh your God shall require it from you and [if postponed] {you will incur guilt}.

Judges 11:30-31

And Jephthah made a vow to Yahweh, and he said, "If indeed you will give the {Ammonites} into my hand,

Judges 11:39

At the end of the two months she returned to her father, and he did to her [according to] his vow; and {she did not sleep with a man}. And it became an annual custom in Israel

1 Samuel 1:11

She {made a vow} and said: "O Yahweh of hosts, if you will look with compassion on the misery of your female servant, and will remember me, and not forget your female servant, and will give to your female servant {a male child} then I will give him to Yahweh all the days of his life, and a razor will never pass over his head."

1 Samuel 1:28

I in turn have lent him to Yahweh. {As long as he lives} he [is] lent to Yahweh." Then they worshiped Yahweh there.

Genesis 28:20-22

And Jacob made a vow saying, "If God will be with me and protect me on this way that I am going, and gives me food to eat and clothing to wear,

Numbers 21:2

Israel made a vow to Yahweh, and they said, "If you will surely give this people into our hand, then we {will destroy} their cities."

Numbers 30:3

"If a woman makes a vow to Yahweh, and she binds a pledge [on herself] in her father's house in your childhood,

Ecclesiastes 5:4-5

When you make a vow to God, do not delay in fulfilling it, for {he takes no pleasure} in fools. Fulfill what you vow!

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 made a vow saying, "If God will be with me and protect me on this way that I am going, and gives me food to eat and clothing to wear,
Numbers 6:2
"Speak to the {Israelites} and say to them, 'When a man or a woman takes a special vow, a vow of a {Nazirite}, to keep separate for Yahweh,
Numbers 21:2
Israel made a vow to Yahweh, and they said, "If you will surely give this people into our hand, then we {will destroy} their cities."
Deuteronomy 23:21
"{When you make a vow} to Yahweh your God, you shall not postpone {fulfillment of it}, [for] certainly Yahweh your God shall require it from you and [if postponed] {you will incur guilt}.
Judges 11:30
And Jephthah made a vow to Yahweh, and he said, "If indeed you will give the {Ammonites} into my hand,
1 Samuel 1:11
She {made a vow} and said: "O Yahweh of hosts, if you will look with compassion on the misery of your female servant, and will remember me, and not forget your female servant, and will give to your female servant {a male child} then I will give him to Yahweh all the days of his life, and a razor will never pass over his head."