If the Sabbath were indeed abolished in the New Testament, we should find numerous passages throughout the New Testament making that clear. The negating of one of God’s Ten Commandments would certainly require nothing less.
Jesus Christ said that "one jot or one tittle will by no means pass from the law until all is fulfilled," or has completely filled its purpose (Matthew 5:18).
Various passages, including entire chapters of the New Testament, make clear the spiritual purpose behind such practices as animal sacrifices and temple worship (Hebrews 7:11-19; 8:1-6; 9:1-15; 10:1-18).
But God's commandments remain. The last books written in the New Testament were, in A.D. 85-95, John's epistles and, about A.D. 05, the book of Revelation. Were the Ten Commandments abolished by that time? Notice John's words:
"Now by this we know that we know Him, if we keep His commandments. He who says, 'I know Him,' and does not keep His commandments, is a liar, and the truth is not in him" (1 John 1:3,4).
"Whoever commits sin also commits lawlessness, and sin is lawlessness," he wrote in (1 John 3:4). He knew that God's law was a law of love, defining both our love for others and our love for God: "By this we know that we love the children of God, when we love God and keep His commandments. For this is the love of God, that we keep His commandments. And His commandments are not burdensome" (1 John 5:2,3).
"this is love, that we walk according to His commandments. This is the commandment, that as you have heard from the beginning, you should walk in it" (2 John 6).
The book of Revelation, divinely inspired by Jesus Christ Himself (Revelation 1:1), also upholds keeping God's commandments. In Revelation 12:17, shortly before Jesus Christ's return, Satan attempts to destroy members of God's Church, "who keep the commandments of God and have the testimony of Jesus Christ."
In Revelation 14:12, the saints are described as "those who keep the commandments of God and the faith of Jesus." Faith and keeping God's commandments go hand in hand, as Paul stated earlier (Romans 3:31).
In the last chapter of the Bible, Jesus Christ gave a final message to the Church:
"'Behold, I am coming quickly, and My reward is with Me, to give to every one according to his work…' Blessed are those who do His commandments, that they may have the right to the tree of [eternal] life, and may enter through the gates into the city" (Revelation 22:12,14).