Ecclesiastes 5:3-5

Revised Geneva Translation

³ When you have vowed a vow to God, do not delay in paying it. For He does not delight in fools. Pay what you have promised.

⁴ It is better that you should not vow than that you should vow and not pay it.

⁵ Do not allow your mouth to make your flesh sin, nor say before the Angel that this is ignorance. Why should God be angry at your voice and destroy the work of your hands?