It is said that the early Christians believed in reincarnation and the soul/heart. The following is from Proverbs:
23 Above all else, guard your heart/soul,
for everything you do flows from it.
24 Keep your mouth free of perversity;
keep corrupt talk far from your lips.
25 Let your eyes look straight ahead;
fix your gaze directly before you.
26 Give careful thought to the[a] paths for your feet
and be steadfast in all your ways.
27 Do not turn to the right or the left;
keep your foot from evil.
God does not tell us to remove evil thoughts from our minds, but he tells us not to act upon them; because when we act upon them and cause suffering to others, it is the soul that collects the demerit of our actions, and eventually releases (flows) it as suffering back to us. God cannot be mocked. A man reaps what he sows. 10. Luke 8:4-18.
It is this suffering that comes back to us that remind us of the evils in our minds. God tells us how to remove these evils by not acting on them when these sufferings that we created boomerang back to us.
In this world we see cause and effect every day. We see good and evil, and we see joy and suffering, but we do not see the relationship. It is time lapse between cause and effect that obscures our understanding of nature’s or God’s justice. By understanding the soul and what flows from it, we can control our own future.
Sufferings from physical or emotional causes are indeed difficult to understand when they occur. Many of us would like to blame external factors, but God tells us that it comes from within us, the soul. It is the soul that collects our merits and demerits and releases them as suffering or joy in order to purify our minds. When suffering or temptations occur, God tells us to ponder and reflect on our own minds.