Ecclesiastes 5:4-6

Wycliffe Bible

⁴ If thou hast avowed anything to God, tarry thou not to yield it; for an unfaithful and fond promise displeaseth him; but yield thou whatever thing thou hast avowed;

⁵ and it is much better to make not a vow, than after a vow to yield not the promises. (and it is much better to not make a vow, than to make a vow and then not yield the promises.)

⁶ Give thou not thy mouth, that thou make thy flesh to do sin; neither say thou before an angel, No purveyance there is; lest peradventure the Lord be wroth on thy words, and destroy all the works of thine hands. (Give thou not thy mouth, that thou make thy flesh to do sin; nor then say thou before an angel, This is but a mistake; lest perhaps the Lord be angry with thy words, and destroy all the works of thy hands.)