So Great Salvation by Arlen L Chitwood and published by Classics.
“So great salvation” in Heb. 2:3 is not the salvation which we presently possess. Rather it is a future salvation, and it is clearly set forth as such in the immediately preceding context, in the text itself, and in the context which immediately follows. The immediately preceding context (1:1-14) has to do with Christ exercising the rights of the firstborn during the coming Messianic Era and with Christians exercising these same rights as companions, coheirs with Him. It has to do with that time when God will again bring His firstborn Son (the One Who is to exercise the rights of primogeniture), the “heir of all things,” into the inhabited world (vv. 2, 5, 6); and it has to do with those redeemed individuals who are to appear as His companions, inheriting with him in that day (vv. 9, 14).
The text itself (2:1-4) begins by referring back to material in chapter one (2:1a), and the text, which comprises the first of five major warning to Christians in this book - “How shall we escape, if we neglect so great salvation…?” - has its basis entirely in this introductory material. The salvation in Heb. 2:3 is the same as the salvation in verse fourteen of the introductory material. That is, coming into possession of “so great salvation” (2:3) is the same as inheriting “salvation” (1:14); and inheriting salvation (or realizing “so great salvation”) is the same as realizing the rights of the firstborn, inheriting as companions with Christ (God’s Firstborn, His “appointed heir of all things” [1:2, 5, 6, 9]).
