Question: Please explain Hebrews 10:26-29. A. F. R.
Answer: The writer is a Hebrew, so classes himself in with the nation, with those who had professed Christianity.
The epistle sets Christ, the substance, in contrast with Judaism, the shadows.
The subject of chapters 9 and 10 is the one great, perfect, all-sufficient sacrifice for sin, that can therefore never be repeated.
The danger was of giving this up, and going back to the shadows, which could never put away sin. There could be no escape from judgment if Christ was thus given up. All falling away in Hebrews is apostasy from Christ.
If after receiving the truth of that one great sacrifice, any should turn away from it, and thus deny Christ, there was no other sacrifice that could save them. Nothing but judgment and fiery indignation remained for such.
If under Moses’ law there was no mercy to despisers, how much sorer would their judgment be who has trodden underfoot the Son of God, and esteemed the blood of the covenant wherewith he was sanctified an unholy thing, and has insulted the Spirit of God, Who has come to witness to its infinite efficacy.
There can be no mercy for those who willfully declare that the Lord Jesus Christ is no Saviour.
Peter in Luke 22:56-62 is a sample of a weak saint who denied that he knew his Lord, but he did not deny that Jesus was the Son of God.
Hebrews 10:39 speaks of true believers.