Many preachers included the concept of __________ in their messages meant to spread Christianity during the Second Great Awakening of the 1800s.

Many preachers during the Second Great Awakening taught perfectionism: the belief that people could strive toward—and potentially achieve—a state of moral perfection through faith and righteous living. This idea encouraged personal conversion and reform. The correct choice is perfectionism.

AI-written and checked against the verified answer.