In the Bible, the heart is the seat of the human identity. We are what our heart is. The heart is who we are and makes us do the things that we do. Who can see God? Only those with a pure heart. The problem is that the human heart is duplicitous and hypocritical. The solution is that Jesus did not come to clean up society, he came to change hearts. A changed heart will be undivided in it's loyalty to God.