Deuteronomy 23:23

The produce of thy lips thou dost keep, and hast done it, as thou hast vowed to Jehovah thy God; a free-will-offering, which thou hast spoken with thy mouth.

Numbers 30:2

'When a man voweth a vow to Jehovah, or hath sworn an oath to bind a bond on his soul, he doth not pollute his word; according to all that is going out from his mouth he doth.

Judges 11:30-31

And Jephthah voweth a vow to Jehovah, and saith, 'If Thou dost at all give the Bene-Ammon into my hand --

Judges 11:35

And it cometh to pass, when he seeth her, that he rendeth his garments, and saith, 'Alas, my daughter, thou hast caused me greatly to bend, and thou hast been among those troubling me; and I -- I have opened my mouth unto Jehovah, and I am not able to turn back.'

1 Samuel 1:11

and voweth a vow, and saith, 'Jehovah of Hosts, if Thou dost certainly look on the affliction of Thy handmaid, and hast remembered me, and dost not forget Thy handmaid, and hast given to Thy handmaid seed of men -- then I have given him to Jehovah all days of his life, and a razor doth not go up upon his head.'

1 Samuel 14:24

And the men of Israel have been distressed on that day, and Saul adjureth the people, saying, 'Cursed is the man who eateth food till the evening, and I have been avenged of mine enemies;' and none of the people hath tasted food.

Psalm 66:13-14

I enter Thy house with burnt-offerings, I complete to Thee my vows,

Psalm 116:18

My vows to Jehovah let me complete, I pray you, before all His people,

Proverbs 20:25

A snare to a man is he hath swallowed a holy thing, And after vows to make inquiry.

Ecclesiastes 5:4-5

When thou vowest a vow to God, delay not to complete it, for there is no pleasure in fools; that which thou vowest -- complete.

Jeremiah 44:25-27

Thus spake Jehovah of Hosts, God of Israel, saying: Ye and your wives both speak with your mouth, and with your hands have fulfilled, saying: We certainly execute our vows that we have vowed, to make perfume to the queen of the heavens, and to pour out to her libations, ye do certainly establish your vows, and certainly execute your vows.

Mark 6:22-23

and the daughter of that Herodias having come in, and having danced, and having pleased Herod and those reclining (at meat) with him, the king said to the damsel, 'Ask of me whatever thou wilt, and I will give to thee,'

Acts 23:12

And day having come, certain of the Jews having made a concourse, did anathematize themselves, saying neither to eat nor to drink till they may kill Paul;

Acts 23:21

thou, therefore, mayest thou not yield to them, for there lie in wait for him of them more than forty men, who did anathematize themselves -- not to eat nor to drink till they kill him, and now they are ready, waiting for the promise from thee.'

Treasury of Scripture Knowledge

Summary

That which is gone out of thy lips thou shalt keep and perform; even a freewill offering, according as thou hast vowed unto the LORD thy God, which thou hast promised with thy mouth.

Bible References

That which

Numbers 30:2
'When a man voweth a vow to Jehovah, or hath sworn an oath to bind a bond on his soul, he doth not pollute his word; according to all that is going out from his mouth he doth.
Judges 11:30
And Jephthah voweth a vow to Jehovah, and saith, 'If Thou dost at all give the Bene-Ammon into my hand --
1 Samuel 1:11
and voweth a vow, and saith, 'Jehovah of Hosts, if Thou dost certainly look on the affliction of Thy handmaid, and hast remembered me, and dost not forget Thy handmaid, and hast given to Thy handmaid seed of men -- then I have given him to Jehovah all days of his life, and a razor doth not go up upon his head.'
Psalm 66:13
I enter Thy house with burnt-offerings, I complete to Thee my vows,
Psalm 116:18
My vows to Jehovah let me complete, I pray you, before all His people,
Proverbs 20:25
A snare to a man is he hath swallowed a holy thing, And after vows to make inquiry.
Ecclesiastes 5:4
When thou vowest a vow to God, delay not to complete it, for there is no pleasure in fools; that which thou vowest -- complete.

Hast vowed

1 Samuel 14:24
And the men of Israel have been distressed on that day, and Saul adjureth the people, saying, 'Cursed is the man who eateth food till the evening, and I have been avenged of mine enemies;' and none of the people hath tasted food.
Jeremiah 44:25
Thus spake Jehovah of Hosts, God of Israel, saying: Ye and your wives both speak with your mouth, and with your hands have fulfilled, saying: We certainly execute our vows that we have vowed, to make perfume to the queen of the heavens, and to pour out to her libations, ye do certainly establish your vows, and certainly execute your vows.
Mark 6:22
and the daughter of that Herodias having come in, and having danced, and having pleased Herod and those reclining (at meat) with him, the king said to the damsel, 'Ask of me whatever thou wilt, and I will give to thee,'
Acts 23:12
And day having come, certain of the Jews having made a concourse, did anathematize themselves, saying neither to eat nor to drink till they may kill Paul;