Deuteronomy 23:21
Verse
If you make a vow to Yahweh your God, do not be slow to keep it, because He will surely require it of you, and you will be guilty of sin. (BSB)
If you make a vow to Yahweh your God, do not be slow to keep it, because He will surely require it of you, and you will be guilty of sin. (BSB)