Proverbs 10:19
Transgression is at work where people talk too much, but anyone who holds his tongue is prudent.
James 3:2
For all of us make many mistakes. If someone does not make any mistakes when he speaks, he is perfect and able to control his whole body.
James 1:19
You must understand this, my dear brothers. Everyone should be quick to listen, slow to speak, and slow to get angry.
Psalm 39:1
I told myself, "I will keep watch over my tongue to keep from sinning. I will muzzle my mouth when the wicked are around."
Ecclesiastes 5:3
Too many worries lead to nightmares, and a fool is known from talking too much.
Proverbs 17:27-28
Whoever controls what he says is knowledgeable; anyone who has a calm spirit is a man of understanding.
Ecclesiastes 10:13-14
He begins his speech with foolishness, and concludes it with evil madness.