Psalm 141:3

New American Bible - revised edition

Set a guard, Lord, before my mouth, keep watch over the door of my lips.

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If anyone thinks he is religious and does not bridle his tongue but deceives his heart, his religion is vain.

For the leader, for Jeduthun. A psalm of David.

Put no faith in a friend, do not trust a companion; With her who lies in your embrace watch what you say.

for we all fall short in many respects. If anyone does not fall short in speech, he is a perfect man, able to bridle his whole body also.

Who is the man who delights in life, who loves to see the good days?

My mouth shall be filled with your praise, shall sing your glory every day.

I said, “I will watch my ways, lest I sin with my tongue; I will keep a muzzle on my mouth.”