Proverbs 10:20
The tongue of the just is as choice silver, but the understanding of the wicked is worth little.
Proverbs 12:18
There are those that speak like the piercings of a sword, but the tongue of the wise is medicine.
Genesis 6:5
And GOD saw that the wickedness of man was great in the earth and that every imagination of the thoughts of his heart was only evil continually.
Genesis 8:21
And the LORD smelled a savour of rest, and the LORD said in his heart, I will not again curse the ground any more for man's sake, for the intent of man's heart is evil from his childhood; neither will I again smite any more every living thing as I have done.
Proverbs 8:19
My fruit is better than gold, yea, than precious stones, and my revenue than choice silver.
Proverbs 15:4
The wholesome tongue is a tree of life, but perverseness therein is a breach in the spirit.
Proverbs 16:13
Righteous lips are the delight of kings, and they love him that speaks that which is right.
Proverbs 23:7
for as he thinks in his soul, so is he; Eat and drink, he shall say unto thee, but his heart is not with thee.
Proverbs 25:11-12
A word fitly spoken is like apples of gold inscribed with silver.
Jeremiah 17:9
The heart is deceitful above all things and desperately wicked; who shall know it?
Matthew 12:34-35
O generation of vipers, how can ye, being evil, speak good things? For out of the abundance of the heart the mouth speaks.