Matthew 12:34
Offspring 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 good, and the evil man out of the evil brings forth evil; for out of the abundance of the heart its mouth speaks.
Matthew 23:33
Serpents, offspring of vipers! How can you escape the judgment of hell?
Matthew 3:7
And seeing many of the Pharisees and Sadducees come for the baptism, he said to them; Offspring of vipers, who has warned you to flee from the wrath to come?
Matthew 15:18
But the things which proceed from the mouth come from the heart, and these defile the man.
James 3:5-8
so also the tongue is a small member and boasts of great things. Behold, how much wood a little fire kindles!
Luke 3:7
Then John said to the multitudes who went out to be baptized by him, Offspring of vipers, who has warned you to flee from the wrath to come?
Matthew 12:35
The good man, out of his good treasury, casts forth good things; and the evil man, out of his evil treasury, casts forth evil things.
John 8:44
You are of your father the devil, and the desires of your father you will to do. He was a murderer from the beginning and stood not by the truth; for truth is not in him. When he speaks a lie, he speaks from his own; for he is a liar, and the father of him [that lies].
Ephesians 4:29
Let no evil word proceed out of your mouth, but that which is good for useful edification, that it may afford benefit to those that hear.
Romans 3:10-14
as it is written, There is none righteous not one,
1 John 3:10
By this are the children of God manifest, and the children of the devil; no one that does not righteousness is of God, and no one that loves not his brother.