Original Verse:
Proverbs Chapter 10 Verse 20The tongue of the just is as choice silver: the heart of the wicked is little worth.

Reference Verses:
Proverbs Chapter 12 Verse 18There is that speaketh like the piercings of a sword: but the tongue of the wise is health.
Proverbs Chapter 15 Verse 4A wholesome tongue is a tree of life: but perverseness therein is a breach in the spirit.
Proverbs Chapter 25 Verse 12As an earring of gold, and an ornament of fine gold, so is a wise reprover upon an obedient ear.
Matthew Chapter 12 Verse 35A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things.
Proverbs Chapter 23 Verse 7For as he thinketh in his heart, so is he: Eat and drink, saith he to thee; but his heart is not with thee.
Genesis Chapter 8 Verse 21And the LORD smelled a sweet savour; and the LORD said in his heart, I will not again curse the ground any more for man's sake; for the imagination of man's heart is evil from his youth; neither will I again smite any more every thing living, as I have done.
Matthew Chapter 12 Verse 34O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
Proverbs Chapter 16 Verse 13Righteous lips are the delight of kings; and they love him that speaketh right.
Proverbs Chapter 25 Verse 11A word fitly spoken is like apples of gold in pictures of silver.
Genesis Chapter 6 Verse 5And 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.
Jeremiah Chapter 17 Verse 9The heart is deceitful above all things, and desperately wicked: who can know it?