Sin is lawlessness, without law, disagreement with God like in the case study of the disagreement unto sin of Adam and Eve. Thus, the Law of Moses cannot be abolished because it sets what can be disagreed with.

Everyone who is doing sin is doing lawlessness also, and sin is lawlessness." 1 John 3:4 CLV

Whenever we find disagreement in Moses and the Prophets, disagreement which has nothing to do with the fulfilled works of the Law in Moses, we are sinning, just as Moses did, only or rather simply by even not following the instructions of Yehoshua (Jesus) in a simple matter. Remember, also, that Uzzah died for not following the instruction or the commandment of God, even though he had a good intention.

Sin is lawlessness. If we believe and teach that there is no law with Jesus or that one law or commandment is no more, we have been misguided by the disguised agents of the disguised messenger of light (Satan), because the Law of Moses is the will of God that YHWH (Jesus) gave to Moses to TEACH, a will which can never be added to, can never be diminished, nor even interpreted, according to Deuteronomy 4:1-2, 5:31-32. 

Logically, God has not abolished any sin or any law, except where we read the expression "Ye have heard that it hath been said, An eye for an eye, and a tooth for a tooth, but I say". Matthew 5:38 KJV

Whoever discourses against any law or command in Moses assumes the authority to abolish the will of God and must be a disguised messenger of light of Satan as spoken of in 2 Corinthians 11:14-15.

Whoever discourses against any law or command in Moses is teaching the classical lie of the serpent 'you shall not die' because of the principle of James 2:10.

Yet, there is a sin which does not lead to death. What is that kind of sin? The Greek of the New Testament identifies it as 'adikia' with its connotation in Greek mythology.

If anyone should be perceiving his brother sinning a sin not to death, he shall be requesting, and He will be giving him life for those sinning not to death. There is a sin to death: I am not saying that he should be asking concerning that." 1 John 5:16 CLV

All injustice (adikia, wrong, beating) sin is and is sin not toward death." 1 John 5:17 CESAIRE

2 Corinthians 11:14-15 ASV
(14)  And no marvel; for even Satan fashioneth himself into an angel of light.
(15)  It is no great thing therefore if his ministers also fashion themselves as ministers of righteousness, whose end shall be according to their works.