Morrow After the Sabbath
The first day of the week was designated for the formal offering of the first-fruits in the form of wave-sheaves (Le 23:11), and of the wave-loaves 50 days later (Le 23:16,17). This recognition of an after-Sabbath during festive periods has its counterpart in the later ecclesiastical practice of celebrating not only Easter Sunday, but also Easter Monday, etc., and undoubtedly was a factor in establishing the custom which transferred the sanctity of the Sabbath to the first day of the week after the resurrection of our Lord.
Frank E. Hirsch