Apostle Paul recants that the cup of wine was shared “in the same way” as the bread, with all the apostles. Both the bread and wine are a remembrance of Jesus and his suffering and death for our salvation. Jesus took simple worldwide available food and drink, and used them to help us not forget him.
Jesus set up the New Covenant at the time when Israel was to remember the Old Covenant Passover, salvation from slavery in Egypt. This helps us understand the meaning behind his sacrifice for freedom from slavery to sin and the fear of death. The remembrance is a living sermon for all generations until he comes again. Christ’s blood establishes the New Covenant between God and man, one of forgiveness and grace. (Hebrews 8:6-13, 9:15)
The old sacrifices brought sins continually to remember (Hebrews 10:1, 3) and required continual offerings of animals. The Lord’s Supper is a remembrance of Christ and his sacrifice once for all for the full and final remission of sins. We remember continually the one sacrifice that saves many, proclaiming his death until he comes again to fulfill the New Covenant promise of eternal life with him in the kingdom of God.

