Newbell, who is Black, had spoken about imago Dei -- the idea that all humans, of all races, are made in the image and likeness of God. The man disagreed.
"He explained that I was subhuman, that I was a different species," recalled Newbell. "And he was trying to use Scripture as proof."
Newbell, 41, chooses her words carefully. But the Knoxville native is candid about the racism she's faced during her ministry, including the past seven years as a community outreach director for an arm of the Southern Baptist Convention.
"Too many times to name, I have gone after a speaking event and wept in my hotel room," Newbell recalled in a recent interview, "just realizing how deeply deceived some people are."