Ecclesiastes 5:4-8

4When you make a vow to God, do not delay in fulfilling it, because He takes no pleasure in fools. Fulfill your vow. 5It is better not to vow than to make a vow and not fulfill it.

6Do not let your mouth cause your flesh to sin, and do not tell the messenger1 that your vow was a mistake. Why should God be angry with your words and destroy the work of your hands? 7For as many dreams bring futility, so do many words. Therefore, fear God.

8If you see the oppression of the poor and the denial of justice and righteousness in the province, do not be astonished at the matter; for one official is watched by a superior, and others higher still are over them.