If the Sabbath was abolished, there would be many verses and much text to show it, yet there is none. The apostles would have had many discussions and the councils at Jerusalem would have written at least one with a determination of it being abolished and yet there is nothing. Paul exhorts in Corinthians that Circumcision is nothing in comparison to the Ten Commandments.
1 Corinthians 7:19
Circumcision is nothing, and uncircumcision is nothing, but the keeping of the commandments of God.
Since there are more than forty verses and up to ten verses at a time clearly stating that Circumcision of the flesh is a yoke of bondage and abolished, how many scriptures would you expect stating the Sabbath was abolished or changed to Sunday? Perhaps seventy or more? The fact is there is not even one verse that says, 'The Sabbath is abolished' or is now Sunday.
Acts 15:1-19 The Council at Jerusalem
1 Certain people came down from Judea to Antioch and were teaching the believers: “Unless you are circumcised, according to the custom taught by Moses, you cannot be saved.” 2 This brought Paul and Barnabas into sharp dispute and debate with them. So Paul and Barnabas were appointed, along with some other believers, to go up to Jerusalem to see the apostles and elders about this question. 3 The church sent them on their way, and as they traveled through Phoenicia and Samaria, they told how the Gentiles had been converted. This news made all the believers very glad. 4 When they came to Jerusalem, they were welcomed by the church and the apostles and elders, to whom they reported everything God had done through them.
5 Then some of the believers who belonged to the party of the Pharisees stood up and said, “The Gentiles must be circumcised and required to keep the law of Moses.”
6 The apostles and elders met to consider this question. 7 After much discussion, Peter got up and addressed them: “Brothers, you know that some time ago God made a choice among you that the Gentiles might hear from my lips the message of the gospel and believe. 8 God, who knows the heart, showed that he accepted them by giving the Holy Spirit to them, just as he did to us. 9 He did not discriminate between us and them, for he purified their hearts by faith. 10 Now then, why do you try to test God by putting on the necks of Gentiles a yoke that neither we nor our ancestors have been able to bear? 11 No! We believe it is through the grace of our Lord Jesus that we are saved, just as they are.”
12 The whole assembly became silent as they listened to Barnabas and Paul telling about the signs and wonders God had done among the Gentiles through them. 13 When they finished, James spoke up. “Brothers,” he said, “listen to me. 14 Simon[
a] has described to us how God first intervened to choose a people for his name from the Gentiles. 15 The words of the prophets are in agreement with this, as it is written:
16 “‘After this I will return
and rebuild David’s fallen tent.
Its ruins I will rebuild,
and I will restore it,
17 that the rest of mankind may seek the Lord,
even all the Gentiles who bear my name,
says the Lord, who does these things’[
b]—
18 things known from long ago.[
c]
19 “It is my judgment, therefore, that we should not make it difficult for the Gentiles who are turning to God. 20 Instead we should write to them, telling them to abstain from food polluted by idols, from sexual immorality, from the meat of strangled animals and from blood. 21 For the law of Moses has been preached in every city from the earliest times and is read in the synagogues on
every Sabbath.”
The Ten Commandments are the only thing that God personally spoke and then personally etched His Law into stone tablets with His own finger. Yet there is not one clear scripture or commandment from Christ or even a direction from a apostle or as you can see from the Jerusalem Council to abolish the Sabbath anywhere in scripture, just a couple of erroneous assumptions. One of God's Commandments supposedly changes or is abolished and we do not have even one clear verse. Why not? The answer is simple. It was never abolished or changed to Sunday by the authority of God so no such scripture exists..