In the past, God spoke to our ancestors many times and in many ways through the prophets, but in these last days he has spoken to us through his Son. (Heb. 1:1)
I wish what you called bunk is about me. It is not! As I have already submitted, the question actually refers to the nature, scope and conditions for the breakthrough as jointly characterized by the crowning life-and-death testimonies of Jesus, Moses and Elijah; or the outstanding truth revealed by Jesus Christ which deserves a reminder without any additions or subtractions!
The breakthrough, or the essence of the gospel, actually refers to the last in a long series of Gods self-revelations over time as documented in the books of Moses, the writings of the prophets and the Psalms (Gen. 2: 7b-9; 6: 9-22; 9: 1-17; 12: 1-3; 15: 1-21; 18: 1-33; 22: 1-18; 28: 10-22; 35: 1-15; Ex. 3: 1-15; 19:9 - 20:17; 24; Num. 21: 4-9; etc., etc.) and finished on the day of Christ consisting of the same-day happenings of death on the cross and glorification reflecting the power, brightness and exact likeness of Gods own being and glory (Matt. 27: 50-56; John 19: 30-37) opening the way to the tree of life in Paradise and, once and for all, making possible a new and living way of worshipping a knowable God (John 4: 21-26; 10: 37-38; Luke 9: 28-36; 23:43; Heb. 1-2; 10: 19-25).
The scale of the God of the living, which on one occasion is known to have included Abraham, Isaac and Jacob (Ex. 3: 1-15; Matt. 22: 32) as well as Moses and Elijah on another occasion (Matt. 17: 1-13; Luke 9: 28-36), was extended and left open-ended for posterity (John 11: 25-26) in Christs work on the cross!
Therefore, I welcome any non-personal questions, suggestions, clarifications and discussions specifically related to the greatest breakthrough in the Scriptures!