Of course - I don’t read your New World Translation.
As I wrote - Jesus was not a sabbatarian. On the contrary He was Lord of the Sabbath
Jesus rose from the dead “on the first day of the week.” Because it is the “first day,” the day of Christ’s Resurrection recalls the first creation. Because it is the “eighth day” following the sabbath, it symbolizes the new creation ushered in by Christ’s Resurrection. For Christians it has become the first of all days, the first of all feasts, the Lord’s Day (he kuriake hemera, dies dominica)
“Upon the first day of the weekσαββατων let every one of you lay by him in store, as God hath prospered him, that there be no gatherings when I come” (1 Cor. 16:2 AV).
Now if you think Paul changed Christianity, do you reject the Pauline epistles?