Proverbs 4:23 Keep your heart with all diligence, for out of it is the wellspring of life. (WEB NIV)
Proverbs 16:22 Understanding is a wellspring of life unto him that hath it: but the instruction of fools is folly. (KJV)
Proverbs 18:4 The words of a man's mouth are as deep waters, and the wellspring of wisdom as a flowing brook. (KJV ASV)