Out of the four basic eschatological views in Christendom, the most consistent element that differentiates Dispensational Pre-Trib Premillennialism from all other eschatological systems is that in Dispensational Pre-trib Premillennialism, God has a different redemptive plan for racial Jews - one that is unique, seperate, and even superior to any other redemptive plan offered to any other racial group (Greeks, Gentiles, etc) in history. This is known as "dual covenant theology", wherein Jewish people don't need to bow to Jesus Christ in order to be saved. They just need to keep the Old Testament laws better! Some Dispensational Pre-trib Premillennialists (Hal Lindsey for one) have even gone so far as to claim that fellow Christians are anti-semites for holding other eschatological views that include a single redemptive plan for all of mankind throughout history.
Dispensational Pre-Trib Premillennialism discounts the Body of Christ - His Church - as being merely a "great parenthesis" that interrupts God's prophetic timetable for man.
A. Heresy is any teaching that directly contradicts the clear and direct witness of the Scriptures on a point of salvific importance. -- Michael Horton
Out of the four basic eschatological views in Christendom, the most consistent element that differentiates Dispensational Pre-Trib Premillennialism from all other eschatological systems is that in Dispensational Pre-trib Premillennialism, God has a different redemptive plan for racial Jews - one that is unique, separate, and even superior to any other redemptive plan offered to any other racial group (Greeks, Gentiles, etc) in history.