This quote has been attributed to many so I can’t give the original source. But is it accurate?
The heart of the human problem is the problem of the human heart.
I think so.
Matthew 15:18-20 (ESV)
18 But what comes out of the mouth proceeds from the heart, and this defiles a person.
19 For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false witness, slander.
20 These are what defile a person. But to eat with unwashed hands does not defile anyone.”
Proverbs 4:23 (ESV) Keep your heart with all vigilance, for from it flow the springs of life.