Psalm 141:3
Set, O Jehovah, a watch to my mouth; guard over the door of my lips.
Micah 7:5
Ye shall not trust in a companion, ye shall not confide in a friend: watch the doors of thy mouth from her lying in thy bosom.
Psalm 39:1
To the overseer, to Jeduthun: chanting of David. I said, I will watch my way from sinning with my tongue: I will watch for my mouth with a muzzle while yet the unjust one is before me.
Psalm 17:3-5
Thou didst try my heart; thou didst review the night; thou didst refine me, thou wilt find nothing: I purposed, my mouth shall not pass by.
Psalm 34:13
Watch thy tongue from evil; and thy lips from speaking deceit
Psalm 71:8
My mouth shall be filled with thy praise, thy magnificence all the day.
James 1:26
If any among you seem to be religious, bridling not his tongue, but deceiving his heart, the religion of this one vain.
James 3:2
For in many things we all stumble. If any stumble not in word, this a perfect man, able to govern by a bridle also the whole body.