Ruckman is a hyperdispensationalist. He teaches different salvation in different time periods, he relegates about half of the NT to the Tribulation period and not to the church.

Bro. Ruckman's KJV defense is one of the best. I have read, heard, and watched him preach and debate several times. But he is a hyperdispensationalist. He doesn't believe the gospel of grace was being preached on the day of pentecost (even though it was preached to Abraham!). That and his nasty attitude I just "spue out" like bone and fat in a steak.