Matthew 12:34
Generation of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks.
Luke 6:45
The good man, out of the good treasury of his heart, brings forth that which is good; and the evil man, out of the evil treasury of his heart, brings forth that which is evil. For out of the abundance of his heart his mouth speaks.
Matthew 23:33
Serpents, generation of vipers, how can you escape the condemnation of hell?
Matthew 3:7
But when he saw many of the Pharisees and Sadducees coming to his immersion, he said to them: Generation of vipers, who has warned you to flee from the coining wrath?
Matthew 15:18
But those things which go out from the mouth, come from the heart; and these defile the man.
James 3:5-8
So, also, the tongue is a little member, and boasts great things. Behold, how great a forest does a little fire set in a blaze.
Luke 3:7
Therefore he said to the multitudes that came out to be immersed by him: Generation of vipers, who has warned you to flee from the coming wrath?
Matthew 12:35
The good man, out of his good treasury, brings forth good things; and the evil man, out of his evil treasury, brings forth evil things.
John 8:44
You are of your father, the devil; and the desires of your father you will do. He was a murderer from the be ginning, and stood not in the truth, because there is no truth in him. When he speaks that which is false, he speaks from what is his own; for he is a liar, and the father of it.
Ephesians 4:29
Let no impure speech come out of your mouth, but whatever is good for needful edification, that it may give grace to the hearers:
Romans 3:10-14
as it is written: There is none righteous, no, not one;
1 John 3:10
By this the children of God are manifest, and the children of the devil. Whoever does not work righteousness is not of God; neither is he that loves not his brother.