The most primitive traditions concerning the life of Jesus are what occurred in the final week of Jesus's life. The earliest Christians celebrated a meal, called "Communion," or the "Lord's Supper," because Jesus instituted such a meal the night before His death. Jesus said that the bread we eat in the meal is (like) His body that was crucified for our sin. The juice that we drink is (like) His blood that is poured out as a sacrificial offering on our behalf. Here is the earliest account of that Christian ritual from the Apostle Paul (ca. 55 AD).
For I received from the Lord what I also handed on to you, that the Lord Jesus on the night when he was betrayed took a loaf of bread, and when he had given thanks, he broke it and said, "This is my body that is for you. Do this in remembrance of me." In the same way he took the cup also, after supper, saying, "This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me." For as often as you eat this bread and drink the cup, you proclaim the Lord's death until he comes. (1 Cor. 11:23-26 NRS)
The Lord’s Supper or Communion is celebrated in weekly worship. It is open to all who are followers of Jesus Christ. The practice of Holy Communion has become the central element of worship within the Disciples tradition. Through the power of the Holy Spirit, the living Christ is met and received in the sharing of the bread and the cup, representative of the body and blood of Jesus. The presence of the living Lord is affirmed and he is proclaimed to be the dominant power in our lives.
The Disciples of Christ also uses the red Chalice in its denominational logo. The chalice symbolizes the central place of communion in worship for the Christian Church (Disciples of Christ). The X-shaped cross of the disciple Andrew is a reminder of the ministry of each person and the importance of evangelism.