Ecclesiastes 5:1-7

1Guard your steps when you go to the house of God. Draw near to listen rather than to offer the sacrifice of fools, who do not know that they do wrong. 2Do not be quick to speak, and do not be hasty in your heart to utter a word before God. For God is in heaven and you are on earth. So let your words be few.

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.