Num 30:2, Deu 23:21, Ecc 5:4 | ESV | STEP | If a man vows a vow to the Lord , or swears an oath to bind himself by a pledge , he shall not break his word . He shall do according to all that proceeds out of his mouth .

Numbers 30:2

2 ^aIf a man vows a vow to the Lord, or ^bswears an oath to bind himself by a pledge, he shall not break his word. ^cHe shall do according to all that proceeds out of his mouth.

Deuteronomy 23:21

21 ^d“If you make a vow to the Lord your God, you shall not delay fulfilling it, for the Lord your God will surely require it of you, and you will be guilty of sin.

Ecclesiastes 5:4

4 When ^eyou vow a vow to God, ^fdo not delay paying it, for he has no pleasure in fools. ^gPay what you vow.