The Early Christians
n“From Rome there came now another addition to the sun-worshipping apostasy.  The first Christians being mostly Jews, continued to celebrate, in remembrance of the death of Christ, the true Passover; and this was continued among those who from among the Gentiles had turned to Christ.  Accordingly, the celebration was always on the Passover day, the fourteenth of the first month.  Rome, however, and from her all the West, adopted the day of the sun as the day of this coloration. According to the Eastern custom, the celebration, being on the fourteenth day of the month, would of course fall on different days of the week as the years resolved. The rule of Rome was that the celebration must always be on a Sunday.” 


      - A.T. Jones, Great Empires of Prophecy, 1898, p.389