What is your take on Jeremiah 31:31-33 then?
As Hebrews explains it:
Heb 10:9 then hath he said, Lo, I am come to do thy will. He taketh away the first, that he may establish the second.
Heb 10:10 By which will we have been sanctified through the offering of the body of Jesus Christ once for all.
Jesus came and thus the first was taken away and the second which is Christ came.
Heb 12:24 and to Jesus the mediator of a new covenant, and to the blood of sprinkling that speaketh better than that of Abel.
Heb 12:25 See that ye refuse not him that speaketh. For if they escaped not when they refused him that warned them on earth, much more shall not we escape who turn away from him that warneth from heaven:
Jesus is the new covenant and in place of the Law of the old. So those who refused God when he Spoke form the mountain did not escape, how shall we escape if we refuse Christ true law.
as it says in Hebrews 10:
Heb 10:28 A man that hath set at nought Moses law dieth without compassion on the word of two or three witnesses:
Heb 10:29 of how much sorer punishment, think ye, shall he be judged worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant wherewith he was sanctified an unholy thing, and hath done despite unto the Spirit of grace?
If the law of God gave to Moses condemned a person under two or three witnesses. then how much more should we fear to bring down Jesus the true law. the one the law pointed to. The one who's glory is greater than the glory of the law?
2Co 3:7 But if the ministration of death, written, and engraven on stones, came with glory, so that the children of Israel could not look stedfastly upon the face of Moses for the glory of his face; which glory was passing away:
2Co 3:8 how shall not rather the ministration of the spirit be with glory?
2Co 3:9 For if the ministration of condemnation hath glory, much rather doth the ministration of righteousness exceed in glory.
While there was glory in the first in that it was a reflection of the true/Jesus. The second exceeded in Glory as Christ is the Law of liberty.
However it is also written:
Heb 12:1 Therefore let us also, seeing we are compassed about with so great a cloud of witnesses, lay aside every weight, and the sin which doth so easily beset us, and let us run with patience the race that is set before us,
Heb 12:2 looking unto Jesus the author and perfecter of our faith, who for the joy that was set before him endured the cross, despising shame, and hath sat down at the right hand of the throne of God.
Heb 12:3 For consider him that hath endured such gainsaying of sinners against himself, that ye wax not weary, fainting in your souls.
Heb 12:4 Ye have not yet resisted unto blood, striving against sin:
Sin must be resisted and the way to know if you are sinning is the same as it always has been.
1Jn 3:4 Every one that doeth sin doeth also lawlessness; and sin is lawlessness.
Only if Christ is in us can we or rather He in us measure up to the law. We need Jesus in our hearts.