Jesus wasn't against following anything in Deuteronomy. In fact he at first preached adherence to the law to the Jews. But after the had been rejected by the Jews and was about to be crucified he instituted the new covenant that had been prophesied by Jeremiah:
Jer 31:31 “Behold, the days are coming, says the LORD, when I will make a new covenant with the house of Israel and with the house of Judah—
The New Covenant is OLD Testament.
The OLD Testament is the pure Gospel about Jesus Christ being the savior of the world
Acts 10 - teaches gentiles the following:
42 And He ordered us to preach to the people, and solemnly to testify that this is the One who has been appointed by God as Judge of the living and the dead. 43 Of Him
all the prophets bear witness that
through His name everyone who believes in Him
receives forgiveness of sins.”
Gal 3:8 - "The Gospel was preached to Abraham"
1 Peter 1:10 As to this salvation,
the prophets who prophesied of the grace that
would come to you made careful searches and inquiries, 11 seeking to know what person or time the
Spirit of Christ within them was indicating as
He predicted the sufferings of Christ and the glories to follow.
In reading further in Jeremiah the new covenant would not be like the covenant God made with the Jews at Sinai. The new one was instituted at the last supper:
Ratified - not instituted.
It is the Gospel covenant. The one and only Gospel covenant instituted at the fall of man, ratified at the cross.
Moses and Elijah stand with Christ in Matt 17 - in glory, not by works, but via the one and only gospel covenant.
Heb 7:12 For the priesthood being changed, of necessity there is also a change of the law.
With the change of the priesthood there is a change of the law.
IT was a change to the law regarding the priesthood - since as Heb 7 points out -- there is nothing at all about a priest coming from the line of Judah or David. Christ then is a priest not after the order of Levi - but after the order of Melchizedek --
This is not about "deleting the Law that says do not take God's name in vain".
Heb 7 is specifically talking about the Law regarding priests - and who is or is not a priest.
. So as the writer to the Colossians says:
Col 2:16 So let no one judge you in food or in drink, or regarding a festival or a new moon or sabbaths,
Col 2 is condemning "traditions of men" not the Law of God.
. 4 I say this so that
no one will delude you with persuasive argument. 5 For even though I am absent in body, nevertheless I am with you in spirit, rejoicing to see your good discipline and the stability of your faith in Christ.
8 See to it that
no one takes you captive through philosophy and empty deception,
according to the tradition of men, according to the
elementary principles of the world, rather than according to Christ. 9
13 When you were dead in your transgressions and the uncircumcision of your flesh, He made you alive together with Him, having forgiven us all our transgressions, 14
having canceled out the certificate of debt consisting of
decrees against us, which was hostile to us; and He has taken it out of the way, having
nailed it to the cross.
<< It is our "certificate of debt" - as Rom 6 reminds us "the wages of sin is death". The punishment due to us - paid by Christ
16 Therefore no one is to act as your judge in regard to food or drink or in respect to a festival or a new moon or a sabbath day— 17 things which are a
mere shadow of what is to come; but the substance belongs to Christ.
(Judge not that you be not judged - is a pre-cross teaching of Christ in Matt 7 and also applies even after the cross as we see in Col 2)
18
Let no one keep defrauding you of your prize by delighting in self-abasement and the worship of the angels, taking his stand on visions he has seen, inflated without cause by his fleshly mind, 19 and not holding fast to the head, from whom the entire body, being supplied and held together by the joints and ligaments, grows with a growth which is from God.
20 If you have died with Christ to the elementary principles of the world, why, as if you were living in the world, do you submit yourself to decrees, such as, 21 “Do not handle, do not taste, do not touch!” 22 (which all
refer to things destined to perish with use)—
in accordance with the commandments and teachings of men? 23 These are matters which have, to be sure,
the appearance of wisdom in self-made religion and self-abasement and severe treatment of the body,
but are of no value against fleshly indulgence.
As both Micah and Isaiah foretold, "For out of Zion the law shall go forth". And the law did go forth from Zion with the Apostles. But it was the law of Melchizedek.