This is a very bizarre spin. At the time of the Last Supper the sacrifice -- the giving of the body -- is still in the future. So how can a command to do something in commemoration refer to the present, when the time of commemorating lies in the future?
Further, this is not how the Holy Apostles understood Him, because from history and from 1 Corinthians 11 we know that they offered the Eucharist, just as their heirs do today.
There is not a single verse anywhere in scripture that says we are to regularly offer Jesus in sacrifice
The words of the institution in all synoptic gospels "this is my body given up for you" plainly mean that the Eucharist at the Last Supper was offer of sacrifice, and since the Apostles took that command seriously, they did the same, -- see 1 Cor 11 again.
no where in the NT are any believers designated priests
We discussed it earlier. Use Greek, search for "presbyter" and keep in mind that "episcopos", bishop, is also a priest.
there is no longer any offering for sin
Indeed. The Mass is offering for sin, but that is not a new offering, just like Hebrews 10 explains. That, too, was discussed earlier on this thread.
is no hint here of offering Jesus in sacrifice
If the body of Christ is really present in the Eucharist then it is the sacrifice of Golgotha that is happening, and St. Paul plainly teaches that it is present.
“If the body of Christ is really present in the Eucharist then it is the sacrifice of Golgotha that is happening, and St. Paul plainly teaches that it is present.”
Really? Where does Paul suggest Jesus is still being offered as a sacrifice at Calvary?
Yes, the Apostles and early church participated in the Eucharist...and gave it the name, ‘Thanksgiving’, not ‘Atonement’. Do this in remembrance of me...