Evidence to that can be found all around the world, specially some years ago when slavery wasn't aborted in many countries. Hypocrisy in this case, would be from the people that slaved to the slaves, since they don't agree religiously, because they have different religions and beliefs.
And that is why, in early times, people that where religious and contributed a lot (with money) could have slaves and do all sorts of things wihtout being accused by anything.
What he means by saying "Hypocrisy in religion is used to justify slavery" because most people back then were white and they were racist about black people . They though all they could do was work and work some more. Then when slavery finally ended most black people excelled in almost everything.
Correct sentence: The ball was dropped on the 10-yard line, while scrambling for the touchdown. Explanation: Modifier was the part after the comma because it had no subject.
