And he took the cup, and gave thanks, and said, Take this, and divide it among yourselves: He took the cup - This was not the sacramental cup, for that was taken after supper, Luke 22:20, but was the cup which was ordinarily taken before supper.
Divide it among yourselves - Pass the cup from one to another; thus the cup which Christ gave to the first person on his right hand continued to be handed from one to another, till it came to the last person on his left.