Matthew 12:34

Guard your heart with all diligence, For from it flow the springs of life.

The heart of the wise gives insight to his mouth And increases learning to his lips.

Therefore the Lord is not glad in their choice men, Nor does He have compassion on their orphans or their widows; For every one of them is godless and an evildoer, And every mouth is speaking wicked foolishness. In spite of all this, His anger does not turn back, And His hand is still stretched out.

But when he saw many of the Pharisees and Sadducees coming for his baptism, he said to them, “You brood of vipers, who warned you to flee from the wrath to come?

“But the things that proceed out of the mouth come from the heart, and those defile the man.

So he was saying to the crowds who were going out to be baptized by him, “You brood of vipers, who warned you to flee from the wrath to come?

“The good man out of the good treasure of his heart brings forth what is good; and the evil man out of the evil treasure brings forth what is evil. For his mouth speaks from the abundance of his heart.

“You are of your father the devil, and you want to do the desires of your father. He was a murderer from the beginning, and does not stand in the truth because there is no truth in him. Whenever he speaks a lie, he speaks from his own nature, for he is a liar and the father of lies.

Let no unwholesome word proceed from your mouth, but only such a word as is good for building up what is needed, so that it will give grace to those who hear.

nor filthiness and foolish talk, or coarse jesting, which are not fitting, but rather giving of thanks.

For we all stumble in many ways. If anyone does not stumble in what he says, he is a perfect man, able to bridle the entire body as well.