The Catholic priesthood, the sacraments, the liturgy and altar, the fulfillment of the atonement of sin…all the earliest practices of Christian worship were in the Jewish milieu!
But also, Palestine in that time was heavily influenced by Hellenistic culture.
Christ and His disciples visited synagogues, gathering places of prayer for the Jews, but when the Jews added a malediction to their prayers against the followers of Christ around 80 A.D., the Jewish Christians had their own synagogues. St. James (the lesser) was probably the first head of the Church of Jerusalem. If you read the Liturgy of St. James, the text seems to have originated there.
At the beginning of the liturgy, the priest extends peace to the congregation who then answers…‘And with your spirit’. The priest blesses all, then asks God for peace and forgiveness of the whole world…which we also refer to, let me say the Latin, the Kyrie…Lord have mercy. The singers respond, ‘Holy God, holy mighty, have mercy on us.’…The priest then asks for blessing and protection…and the people respond with amen.
The liturgy then proceeds with readings from the Old and New Testaments. The next action of the liturgy is the dismissal of the unbaptized. The liturgy then goes into the Eucharistic Prayer, the priest beginning, 'The love of the Lord and Father, the grace of the Lord and Son, and the fellowship and the gift of the Holy Spirit be with us all. Response of the people: And with your spirit. Priest: Let us lift up our minds and our hearts. People: It is proper and right. The priest continues in praising God, and then the people respond: 'Holy, holy, holy; O Lord of hosts, heaven and earth are full of your glory. Hosanna in the highest. Blessed is he who comes in the name of the Lord. Hosanna in the highest.
The priest continues to praise the Lord Jesus Christ…the deacon prays…'For the remission of sins and life everlasting.
The priest says: Take, eat. This is my body; broken for you; and given for the remission of sins. People: Amen. Priest: In the same way, after supper, he took the cup with mixed wine and water (my comment, symbolizing the blood and water of baptism) and lifting his eyes to heaven and presenting it to you, his God and Father, he gave thanks and prayed and blessed it. He filled it with the Holy Spirit and gaveit to us his disciples, saying, Drinik this, all of you; this is my blood of the new covenant, shed for you and many, and given for the remission of sins. The people say amen.
The priest says, 'Do this in remembrance of me; for, as often as you eat this bread and drink this cup, you proclaim the Lord’s death and confess his resurrection until he comes again. There are following belief proclaimed and confess and the Lord’s death and confess the resurrection… to the Rite of Communion.
The priest says the the prayer before the Communion: O Lord, our God, the heavenly bread, the life of the universe, I have sinned against heaven and before you, and I am not worthy to partake of your pure mysteries; but as a merciful God, make me worthy by your grace, without condemnation, to partake of your holy body and precious blood for the remission of sins, and life everlasting.
Then he distributes to the clergy, and then the deacons take the patens and the chalices for distribution to the people.
As you can see from the text, the priest fulfills the role of the ancient Levites who did not turn to idolatry but kept their eyes on God alone, the Levites performed the ancient blood sacrifices on their altars as atonement for sin…but the priests who followed Jesus as atonement for the remission of our sins on the altar and held on to the truth that the bread and wine became the body and blood of Jesus fulfill all former priests through the High Priest, Jesus Christ.
Note that the intent and tone and reverence of liturgy was the same then as it is today, never lost.
To say that the Church was lost after st. John the Evangelist when he even wrote to existing churches that would continue after his death, and to see the reference to the Mass in Revelation 22, just the text and reference here to Revelation should prove that the Church was founded on the Apostles, that the early church was Jewish, and the outward form changed when Jewish practices were abolished, abstaining from certain foods and circumcision. The word Catholic was drawn from the Hellenistic international influence of those times…