Proverbs 4:23 Keep thy heart with all diligence; for out of it are the issues of life.
24 Put away from thee a froward mouth, and perverse lips put far from thee
We see now that the heart is the center of all that we do. The wisdom that we learn is stored in the heart not the mind. The heart is the very center of our being. The mind is the center of thinking, emotions, reason, and our will. The heart is the depository of all wisdom and the source of whatever affects speech, sight, and conduct. We will have either a pure heart or a wicked heart and we know that God judges the heart. A froward mouth and perverse words come from an evil heart. Out of the abundance of our heart our mouth speaketh. It speaks life or death.