I will give you a new heart and place a new spirit within you. I will remove from your body a heart of stone and give you a heart of flesh in its place.
A good man produces good from the store of goodness in his heart, whereas an evil man produces evil from the store of evil within him. For the mouth speaks from the abundance of the heart.
Indeed, the word of God is living and active. Sharper than any two-edged sword, it pierces to the point where it divides soul and spirit, joints and marrow; it judges the thoughts and the intentions of the heart.