The following are some “New Testament” passages revealing that the keeping of the “Old Testament” commandments did NOT end with the coming of Yeshua (Jesus)...
John 14: 15. If you love me, keep my Commandments. 16. And I will ask of my Father and He will give you another Redeemer who will be with you forever. 17. The Spirit of Truth, He who the world is not able to receive because it has not seen Him, nor does know Him. But you know Him for He dwells with you and He is in you.
18. I will not leave you bereaved. For I will come to you in a little while. 19. And the world will not see me, but you will see me. Because I live, you also will live. 20. In that day you will know that I am in my Father and you are in me and I am in you. 21. He who has my Commandments with him and keeps them, he is who loves me and he who loves me will be loved by my Father. And I will love him and reveal myself to him. (AENT)
 "Redeemer" or "One who ends the curse." By the indwelling of the Ruach haKodesh, our fallen nature is redeemed from the curse of Adam. By ending the curse, Mashiyach as savior, more literally fulfills the office of Mashiyach as the "giver of lives."
John 15: 10. If you keep my Commandments, you will abide in my love, just as I have kept the Commandments of my Father, and I abide in His love. 11. I have spoken these things with you that my joy may be in you and that your joy might be full in you. 12. This is my Commandment, that you love one another just as I have loved you. (AENT)
NOTE: The "Commandments of my Father" always refers to Torah; see also John 15:5. Y'shua and his Talmidim (disciples) keep his Father's Commandments, but mainstream Christianity is not only anti-Torah; they turned rebellion against Torah into a "fashionable" form of lawlessness. See Daniel 7:24; 2 Thessalonians 2:7; 2 Timothy 2:19; Titus 2:14; 2 Peter 2:21; 1 John 3:4; Hebrews 2:2-4; Romans 4:15; Matthew 7:23; 13:41.
Note in the above that Yeshua was Torah observant; He kept the commandments of Torah! He said, "If you keep my Commandments, you will abide in my love, just as I have kept the Commandments of my Father, and I abide in His love." Note that Yeshua said “YOU”…Those two facts ("love" and "commandments") cannot be separated! To "love one another" is to share with each other the keeping of the commandments!
God LOVES us, and He WANTS to have a true relationship with Him. Our “traditions” and simply “going to church” are NOT a “relationship.” He demands that we obey His commands, so that all will go well with us.
In Deuteronomy 27:26 He said: “A curse on anyone who does not confirm the words of this Torah by putting them into practice.' All the people are to say, 'Amen!'" (Also, please read Deuteronomy 28:1-15.) These things didn’t then, and don’t now, pertain “only to the Jews.” …
If you’ve read the whole Bible, you can see from start to finish how adamant He was and is - all the way through to the end of the “New Testament”:
Jeremiah 17: 5 Here is what ADONAI says: "A curse on the person who trusts in humans, who relies on merely human strength, whose heart turns away from ADONAI. 6 He will be like a tamarisk in the 'Aravah - when relief comes, it is unaffected; for it lives in the sun-baked desert, in salty, uninhabited land.
7 Blessed is the man who trusts in ADONAI; ADONAI will be his security. 8 He will be like a tree planted near water; it spreads out its roots by the river; it does not notice when heat comes; and its foliage is luxuriant; it is not anxious in a year of drought but keeps on yielding fruit. 9 "The heart is more deceitful than anything else and mortally sick. Who can fathom it? 10 I, ADONAI, search the heart; I test inner motivations; in order to give to everyone what his actions and conduct deserve." (CJB)
Revelation 22: 14. Blessed are they who do His (Master YHWH's) Mitzvot (words/commands), that they may have a right to the tree of life and may enter through the gates into the city. 15. Without (will be) dogs (idiom for male prostitutes; those who are evil/pagan) and sorcerers, and whoremongers and manslayers and idolaters, and everyone that loves and does falsehood. 16. I Y'shua have sent my Messenger to testify to you these things before the assemblies. I am the root and offspring of Dawid: like the splendid star of the morning.
17. And the Spirit and the bride say, You come. And let him that hears, say, You come. And let him who thirsts, come; and he that is inclined, let him take the living water freely. 18. I testify to everyone who hears the words of the prophecy of this book, that if anyone will add to them, Elohim will add to him the plagues that are written in this book.
19. And if anyone will take away from the words of the book of this prophecy, Elohim will take away his portion from the tree of life and from the Set Apart city, which are described in this book. 20. He who testifies these things, says: Yes, I come quickly. Amen. Come, Lord Y'shua! 21. The grace of our Master (Y'shua) Y'shua the Mashiyach, (be) with all the Set Apart believers. Amen. (AENT)
Remember who was standing before Him on Sinai? It wasn’t just “the Jews”; it was the 12 tribes, AND the foreigners who had followed Moshe and the Hebrews out of Egypt. Those of them who wished to accept YHWH as their ELOHIM, were told to do exactly as HIS people did! (Exodus 12:38, Numbers 15:13-16)
YHWH was making His oath not only with those standing before Him, but with all future generations of those who have accepted Him as their Elohim! (Remember, as believers in the God of Abraham, Isaac and Jacob, YOU are part of Israel - Halleluyah! He made this oath with YOU as well as those standing before Him at Sinai: Obey Him and all will go well with you; disobey and you will be cursed....)
Deuteronomy 29: 19 If there is such a person, when he hears the words of this curse, he will bless himself secretly, saying to himself, ‘I will be all right, even though I will stubbornly keep doing whatever I feel like doing; so that I, although “dry,” [sinful,] will be added to the “watered” [righteous].’ 20 But ADONAI will not forgive him. Rather, the anger and jealousy of ADONAI will blaze up against that person. Every curse written in this book will be upon him. ADONAI will blot out his name from under heaven. (ESV)
A FINAL NOTE TO PONDER:
The death of Yeshua didn't remove our need to have a true and holy relationship with YHWH; he came to free us from our past sins. If things aren’t “going well” with us and we aren’t feeling blessed, it’s either because YHWH is loving us enough to chastise us for something, and He is trying to get us back on track; OR, because WE deliberately continue to ignore His commands – at which point we will receive His curses.