Jeremiah 17:9
9 The heart is deceitful above all things,
and desperately sick;
who can understand it?
Mark 7:21–23
21 For from within, out of the heart of man, come evil thoughts, sexual immorality, theft, mmurder, adultery, 22 coveting, wickedness, deceit, nsensuality, oenvy, pslander, qpride, rfoolishness. 23 sAll these evil things come from within, and they defile a person.”