Matthew 15:18
That which comes out of the mouth, comes from the heart and makes a man unclean.
Matthew 12:34
You offspring of vipers. How can you who are evil speak good things? Out of the abundance of the heart the mouth speaks.
Proverbs 15:2
The tongue of the wise uses knowledge properly. The mouth of fools pours out foolishness.
Proverbs 15:28
The heart of the righteous studies how to answer. The mouth of the wicked pours out evil things.
Matthew 15:11
That which comes out of the mouth makes a man unclean, not that which goes into the mouth.
James 3:6-10
The tongue is like fire, the place of iniquity among our members. It defiles the whole body, and sets on fire the course of our life. It is set ablaze like the ever-burning fires in the Valley of Hinnom (Greek: Gehenna: symbolic of total destruction).
1 Samuel 24:13
An old proverb says: 'Only evil people do evil things.' So I will not harm you.
Psalm 36:3
The words of his mouth are wickedness and deceit and he ceased to be wise and do good.
Proverbs 6:12
An ungodly person, a wicked man, walks with a perverse mouth.
Proverbs 10:32
The lips of the righteous speak what is acceptable. The mouth of the wicked speaks perversion.
Luke 19:22
He said to him: Out of your own mouth I will judge you, you wicked servant. You knew that I am an austere man, taking up that which I did not lay down, and reaping that which I did not sow.
Revelation 13:5-6
A mouth speaking great things and blasphemies was given to the beast. And authority to act was given to him to continue forty-two months.