In Hebrews 12:26 same chapter. states that the lord will shake once more the heaven and earth. Not to remove the things that cannot be shaken but to shake those things that can. This Implies that no corruption will dwell on His holy mountain. That all things in heaven and earth will be proven "shaken" before we enter the city of God in mount Sion. Verse 22
"For God is in all consuming fire." same chapter verse 29. Is this not why Moses trembled exceedingly for what he seen in verse 21. Sounds like only the elect can see God.
12-23 Seems to be an account for the elect and there steadfastness in Christ, believing that Christ is the high priest and by the sprinkling of His blood we are justified.
This chapter is calling for righteousness.
And since GOD will only accept perfection,how would man keep the law before JESUS came and kept the law perfectly.
The only thing man could do Is try to keep the law.We are now under grace,JESUS who fulfilled the law,righteously,
fully
man and fully GOD and all the wrath of GOD was satisfied by punishing sin In the body of JESUS and HIS blood was accepted by GOD the Father.
So thats why you can't mix law and grace,It would be saying,because I tried,I helped when the person should give JESUS ALL the credit for a PERFECT sacrice on the behalf of man and If JESUS had not perfectly fulfilled the law,our father would not have accepted the blood of JESUS and grace would not be available.
So then when someone Is saying we should keep the ten commandments they would be saying at best,I tried.
Jesus said keep the two commandments,love GOD and love your neiighbor,and this
grace that only JESUS made possible for us Is accessed through faith In the WORD of GOD.