Leviticus 7:16,17
But if the sacrifice of his offering be a vow, or a voluntary offering, it shall be eaten the same day that he offers his sacrifice: and on the morrow also the remainder of it shall be eaten:
Nave's Topical Index—AKJV

Leviticus 22:17-25
And the LORD spoke to Moses, saying,
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Deuteronomy 23:21-23
When you shall vow a vow to the LORD your God, you shall not slack to pay it: for the LORD your God will surely require it of you; and it would be sin in you.
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