Matthew 15:18
But those things which proceed out of the mouth come from the heart, and they defile the man.
Matthew 12:34
O generation of vipers, how can ye say well, when ye yourselves are evil? For of the abundance of the heart, the mouth speaketh.
Proverbs 15:2
A wise tongue commendeth knowledge; a foolish mouth babbleth out nothing but foolishness.
Proverbs 15:28
A righteous man museth in his mind how to do good; but the mind of the ungodly imagineth how he may do harm.
Matthew 15:11
That which goeth into the mouth, defileth not the man: but that which cometh out of the mouth, defileth the man."
James 3:6-10
and the tongue is fire, and a world of wickedness. So is the tongue set among our members, that it defileth the whole body, and setteth afire all that we have of nature, and is itself set afire, even of hell.
1 Samuel 24:13
According to the old proverb, wickedness shall proceed out of the wicked: But mine hand be not upon thee.
Psalm 36:3
The words of his mouth are unrighteous and full of deceit; he hath left off to behave himself wisely, and to do good.
Proverbs 6:12
An ungodly person, a wicked man goeth with a froward mouth,
Proverbs 10:32
The lips of the righteous are occupied in acceptable things; but the mouth of the ungodly taketh them to the worst.
Luke 19:22
And he said unto him, 'Of thine own mouth judge I thee, thou evil servant. Knowest thou that I am a strait man, taking up that I laid not down, and reaping that I did not sow?
Revelation 13:5-6
And there was a mouth given unto him that spake great things, and blasphemies, and power was given unto him, to continue forty two months.