Ecclesiastes 5:2-6
English Standard Version
Chapter 5
2Be not rash with your mouth, nor let your heart be hasty to utter a word before God, for God is in heaven and you are on earth. Therefore let your words be few. 3For a dream comes with much business, and a fool 's voice with many words.
4When you vow a vow to God, do not delay paying it, for he has no pleasure in fools. Pay what you vow.
5It is better that you should not vow than that you should vow and not pay.
6Let not your mouth lead you into sin, and do not say before the messenger that it was a mistake. Why should God be angry at your voice and destroy the work of your hands?