Carl Rogers believed in developing your "self-concept" & self-psychology. He believed people should be accepted as they are with no judgementalism---the "I'm OK-Your OK" mentality.
When I say unto the wicked, O wicked man, thou shalt surely die; if thou dost not speak to warn the wicked from his way, that wicked man shall die in his iniquity; but his blood will I require at thine hand. Ezekiel 33:8