Once you are biased against someone, it is not easy to reject the negative feeling towards him, though he has become a renewed person. It is because you may still think of his past. You may even find and reveal his past fault and hurt his heart. However, God does not do so. He knows the depth of our heart as well as our deeds, but He patiently waits for us rather than reveal our transgression. Even if you commit a grave sin, as long as you turn back from the sin, He will not condemn you as a sinner nor remember it (Hebrews 8:12). Let's follow His example, and thereby cast off a prejudice against others, try to recognize their good points, and cover their transgressions.