Polycarp
After the death of the apostle John, a disciple of his, Polycarp,
waged a controversy over the Passover-Easter question with the
bishop of Rome, by then leader of the church started by Simon.
Still later, another disciple of Christ’s true Christianity,
Polycrates, waged a still hotter controversy over the same
Passover-Easter question with another bishop of Rome.
This theological battle was called the Quartodeciman Controversy.
Polycrates contended, as Jesus and the original apostles taught,
that the Passover should be observed in the new Christian form
introduced by Jesus and by the apostle Paul (1 Corinthians 11),
using unleavened bread and wine instead of sacrificing a lamb,
on the eve of the 14th Nisan (first month in the sacred calendar,
occurring in the spring).
But [the Rome church] insisted that it be observed on a Sunday.
http://en.wikipedia.org/wiki/Quartodecimanism
http://en.wikipedia.org/wiki/Easter_controversy
http://en.wikipedia.org/wiki/Polycarp
he was a disciple of John the Apostle
http://en.wikipedia.org/wiki/Polycrates_of_Ephesus
those who keep the lively oracles of God, the sabbath
keepers