Hi John and Doves,

From Isaiah 66:20, there is an offering after Jesus returns to Jerusalem. I  am pretty confident this is the Pentecost offering. It is because there are 49 days separating Nisan 15 and Pentecost. These 49 days is equal to Daniel's 7 weeks. And there is no other feasts separated by 49 days other than Unleavened Bread and Pentecost. If Jesus comes back on Rosh Hashana or Yom Kippur, a commandment is given forth on this day to rebuild the streets and walls of Jerusalem,  adding 49 days to either day, we don't come to any Feast at all. Having said this, the feast offering in Isaiah 66:20 is the Pentecost offering. And Jesus is returning to Jerusalem on Nisan 15 to fulfill Daniel's 7 weeks prophecy.

Ray