For in many things we offend all. If any man offend not in word, the same is a perfect man, and able also to bridle the whole body.
James 3:2 KJV
My covenant will I not break, nor alter the thing that is gone out of my lips.
Psalms 89:34 KJV
Death and life are in the power of the tongue: and they that love it shall eat the fruit thereof.
Proverbs 18:21 KJV
Thou art snared with the words of thy mouth, thou art taken with the words of thy mouth.
Proverbs 6:2 KJV
For ever, O Lord , thy word is settled in heaven.
Psalms 119:89 KJV