“The office of elder is the office of priest.”
... No it is not. Ever.
“Jesus was High Priest.”
... yes he IS. He entered ONCE into Heaven and made a sacrifice once for all, according to Hebrews.
“He shared His priesthood with the Apostles.”
... No, He never did in Scripture.
“Sure there was - Jesus was re-presented in the Eucharistic sacrifice.
... and yet there was no Eucharistic sacrifice in the NT or in the Church before 100AD.
“... No it is not. Ever.”
Actually it is. Always.
“... yes he IS. He entered ONCE into Heaven and made a sacrifice once for all, according to Hebrews.”
Yes, and He made the Apostles priests as well.
“... No, He never did in Scripture.”
Yes, actually He did. When He told the Apostles to carry on the Eucharist in remembrance of Him.
“... and yet there was no Eucharistic sacrifice in the NT or in the Church before 100AD.”
Yes, there was. Hence, the use of the word anamnesis.