Of course, then Passover just went away for the same reason I guess.
From Ott's Fundamentals of Catholic Dogma: (pps 184-185)
"St. Paul most clearly of all bears witness to the sacrificial character of Christ's death on the Cross. Ephesians 5:2 "... Christ also hath loved us and hath delivered Himself for us, an oblation and a sacrifice, to God as a sweet odour (as a pleasing sacrifice)." 1 Corinthians 5:7: "For Christ our Pasch is sacrificed." Romans 3:25: "Whom God hath proposed to be a propitiation through faith in his blood."
The atoning blood is, however, according to Holy Scripture (cf. Leviticus 17:11) sacrificial blood. Hebrews 9:I-10 & 18 describes the superiority of the sacrifice offered by Christ on the Cross over the Old Testament sacrifices 9:28: "So also Christ was offered to exhaust the sins of many." (cf. I John 2:2).
Christ Himself indirectly designated His death on the Cross as a sacrifice for the sins of men, by using the biblical sacrificial terms "giving up of life" and shedding of blood".: Matthew 20:28 (Mark 10:45): For the Son of Man also is not come to be administered unto; but to minister and to give His life a Redemption for many."
In the inauguration of the Holy Eucharist He indicates the sacrificiaI character of His death. Luke 22:19: "This is my body which is given for you." Matthew 26:28: "This is my blood of the New Testament which shall be shed for many unto remission of sins."
This, p370
Prefigures of the Eucharist are the Tree of Life in Paradise, the sacrifices of Abraham and Melchisedech, the manna in the desert, the Shew-bread in the Temple, and the various sacrifices of the Old Covenant, especially that of the Paschal Lamb.
Went away? Please. It's absolutely central to Christianity. Christ is the Paschal Lamb, and in Him, and His sacrifice, is summed up the history of Israel.
I don't disagree that the Lord's Day is the Sabbath. I claim that scripturally it is still Saturday.
For the Jews, yes. But, as said before, Jesus is Lord of the Sabbath, so take it up with Him.