The Bible tells us about the holy supper and that it was instituted by Jesus Christ so that we can remember Him with this act. This custom is in force, some churches practice it regularly, others do it rarely and a few never do it. The point is that there are several passages that tell us about this great celebration, since it is a way of remembering the sacrifice of our beloved Lord on the cross of Calvary.
Christ said:
26 While they were eating, Jesus took bread, and when he had given thanks, he broke it and gave it to his disciples, saying, “Take and eat; this is my body.”
27 Then he took a cup, and when he had given thanks, he gave it to them, saying, “Drink from it, all of you.
28 This is my blood of the covenant, which is poured out for many for the forgiveness of sins.
29 I tell you, I will not drink from this fruit of the vine from now on until that day when I drink it new with you in my Father’s kingdom.”
Matthew 26:26-29