mouth
Proverbs 10:20,21,32 The tongue of the just is as choice silver: the heart of the wicked is little worth...
Proverbs 13:14 The law of the wise is a fountain of life, to depart from the snares of death.
Proverbs 15:7 The lips of the wise disperse knowledge: but the heart of the foolish does not so.
Proverbs 16:22-24 Understanding is a wellspring of life to him that has it: but the instruction of fools is folly...
Proverbs 18:4 The words of a man's mouth are as deep waters, and the wellspring of wisdom as a flowing brook.
Proverbs 20:15 There is gold, and a multitude of rubies: but the lips of knowledge are a precious jewel.
Psalm 37:30,31 The mouth of the righteous speaks wisdom, and his tongue talks of judgment...
Ephesians 4:29 Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying...
but
Psalm 107:42 The righteous shall see it, and rejoice: and all iniquity shall stop her mouth.
Ecclesiastes 10:12-14 The words of a wise man's mouth are gracious; but the lips of a fool will swallow up himself...
Matthew 12:34-37 O generation of vipers, how can you, being evil, speak good things? for out of the abundance of the heart the mouth speaks...
James 3:5-8 Even so the tongue is a little member, and boasts great things. Behold, how great a matter a little fire kindles!...