Matthew 15:18
but the things which go forth out of the mouth come out of the heart, and those defile man.
Matthew 12:34
Offspring of vipers! how can ye speak good things, being wicked? For of the abundance of the heart the mouth speaks.
Proverbs 15:2
The tongue of the wise useth knowledge aright; but the mouth of the foolish poureth out folly.
Proverbs 15:28
The heart of a righteous man studieth to answer; but the mouth of the wicked poureth out evil things.
Matthew 15:11
Not what enters into the mouth defiles the man; but what goes forth out of the mouth, this defiles the man.
James 3:6-10
and the tongue is fire, the world of unrighteousness; the tongue is set in our members, the defiler of the whole body, and which sets fire to the course of nature, and is set on fire of hell.
1 Samuel 24:13
As saith the proverb of the ancients, Wickedness proceedeth from the wicked; but my hand shall not be upon thee.
Psalm 36:3
The words of his mouth are wickedness and deceit: he hath left off to be wise, to do good.
Proverbs 6:12
A man of Belial, a wicked person, is he that goeth about with a perverse mouth;
Proverbs 10:32
The lips of a righteous man know what is acceptable; but the mouth of the wicked is frowardness.
Luke 19:22
He says to him, Out of thy mouth will I judge thee, wicked bondman: thou knewest that I am a harsh man, taking up what I have not laid down and reaping what I have not sowed.
Revelation 13:5-6
And there was given to it a mouth, speaking great things and blasphemies; and there was given to it authority to pursue its career forty-two months.