Then he took a loaf, and after thanking God he broke it and gave it to them, saying, "This means my body given up for your sake; do this in memory of me."
the man who values a particular day does so to the Lord. The eater eats to the Lord, since he thanks God for his food; the non-eater abstains to the Lord, and he too thanks God.
Then taking the five loaves and the two fish and looking up to heaven he blessed them, broke them in pieces and handed them to the disciples to set before the crowd.
Then he ordered the crowds to recline on the grass, and after taking the five loaves and the two fish he looked up to heaven, blessed them, and after breaking the loaves handed them to the disciples, and the disciples handed them to the crowds.
The cup of blessing, which we bless, is that not participating in the blood of Christ? The bread we break, is that not participating in the body of Christ?