So before I forget, one lesson we can learn from Parsley is.. how NOT to run a Church and a family life that seems to have focused on opulence rather then frugality. He makes email appeals for money which promise that if you give more you will receive more (reward). Here is the source with a documented email from Parsley.
But in spite of the criticisms and lawsuits levelled against him, there is still much to learn from his public speaking, and it is.. "how to do public speaking"..... Here is an example of how to convey passion.
Move it to the point 1.00 for the beginning of Parsley's powerful denunciation of Islam. His delivery is awesome and before you jump to wrongful conclusions, if you have any doubts about the truth of what Parsley says on this issue.. just read the Quran below for confirmation that he is speaking truth.
9:29Fight those who do not believe in Allah or in the Last Day and who do not consider unlawful what Allah and His Messenger have made unlawful and who do not adopt the religion of truth from those who were given the Scripture - [fight] until they give the jizyah willingly while they are humbled.