Examining some passages from Luke, Bina Makgwana speaks on why we share communion.

Then he took bread, and after giving thanks he broke it and gave it to them, saying, “This is my body which is given for you. Do this in remembrance of me.” And in the same way he took the cup after they had eaten, saying, “This cup that is poured out for you is the new covenant in my blood.”

Luke 22:19-20