A Christian historian and author has concluded that Barack Obama is "bizarrely confused" on a range of moral and religious issues — and that the current administration "poses the greatest threat to religious liberty in American history."

Dr. Jefrey Breshears has published a new book that examines the factors that shaped President Obama’s understanding of Christianity. The Gospel According to Barack: Where Did Barack Obama Get His Ideas About Christianity? analyzes the religious elements that have informed the president’s views on a wide range of social and moral issues including same-sex "marriage," abortion, and the relationship between church and state.

Breshears is president of the Areopagus Christian Study Center, based in Marietta, Georgia.

"I was motivated to write the book by the comment that President Obama made back in May of 2012 that it was his Christian faith that inspired him to publicly support same-sex marriage," explains the author, in reference to the president’s explanation that his views on the matter had "evolved."

"I thought a comment like that deserved an appropriate response," Breshears continues, "because frankly nothing could be more indefensible than misusing [and] misrepresenting the Christian faith in order to promote a practice that’s so obviously unbiblical."

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