Proverbs 18:4
The words of a man's mouth are deep waters; the fountain of wisdom is a bubbling brook.
Proverbs 20:5
The purpose in a man's heart is like deep water, but a man of understanding will draw it out.
Psalm 78:2
I will open my mouth in a parable; I will utter dark sayings from of old,
Proverbs 10:11
The mouth of the righteous is a fountain of life, but the mouth of the wicked conceals violence.
Proverbs 13:14
The teaching of the wise is a fountain of life, that one may turn away from the snares of death.
Proverbs 16:22
Good sense is a fountain of life to him who has it, but the instruction of fools is folly.
Matthew 12:34
You brood of vipers! How can you speak good, when you are evil? For out of the abundance of the heart the mouth speaks.
John 4:14
but whoever drinks of the water that I will give him will never be thirsty again. The water that I will give him will become in him a spring of water welling up to eternal life."
John 7:38-39
Whoever believes in me, as the Scripture has said, 'Out of his heart will flow rivers of living water.'"
Colossians 3:16
Let the word of Christ dwell in you richly, teaching and admonishing one another in all wisdom, singing psalms and hymns and spiritual songs, with thankfulness in your hearts to God.
Colossians 4:6
Let your speech always be gracious, seasoned with salt, so that you may know how you ought to answer each person.