Mark 16:1 And the sabbath passing, Mary Magdalene and Mary the mother of James and Salome, bought spices, so that coming they might anoint Him. Mark 16:2 And very early on the first of the week, the sun having risen, they came upon the tomb.
Luke 24:1 And the first of the sabbaths, while still very early, they came on the tomb, carrying spices which they prepared; and some were with them.
John 20:1 But on the first of the sabbaths, Mary Magdalene came early to the tomb, darkness yet being on it. And she saw the stone had been removed from the tomb.
Matthew 28:1 But late in the sabbaths, at the dawning into the first of the sabbaths, Mary the Magdalene and the other Mary came to gaze upon the grave.
Mark 16:9 And having risen early on the first of the sabbath, He first appeared to Mary Magdalene, from whom He had cast out seven demons.
John 20:19 Then it being evening on that day, the first of the sabbaths, and the doors having been locked where the disciples were assembled because of fear of the Jews, Jesus came and stood in the midst and said to them, Peace to you.
These are all the verses you quoted to make your case, but in the original and literal interpretation, it does not mention Sunday. In every case, it says the first of the sabbaths.
Therefore can you explain why this is the case?