A blight on the modern western church is that the bible has been used by certain people to justify racism--specifically dark skinned people's inferiority and light skinned people's superiority. Some unfortunately smart people found passages of scripture to support this viewpoint and created compelling arguments.
What are these arguments and from which scriptures do them come? And I'm not just asking about slavery! How did the church support racist ideas into the 30s and 40s and 50s, long after the days of emancipation?