CAB(i)
21 And if you will vow a vow to the Lord your God, you shall not delay to pay it; for the Lord your God will surely require it of you, and otherwise it shall be sin to you.
22 But if you should be unwilling to vow, it is not sin to you.
23 You shall observe the words that proceed from between your lips; and as you have vowed a gift to the Lord God, so shall you do that which you have spoken with your mouth.