And it is much better not to make a vow, than, after a vow, not to fulfill what was promised
Other versions
King James Version
When thou vowest a vow unto God, defer not to pay it; for he hath no pleasure in fools: pay that which thou hast vowed.English Standard Version
When you vow a vow to God, do not delay paying it, for he has no pleasure in fools. Pay what you vow.New International Version
When you make a vow to God, do not delay in fulfilling it. He has no pleasure in fools; fulfill your vow.