Sometimes remembering Jesus [during the Lord’s Supper] is painful. Paul makes this very point in 1 Corinthians 11:27-28: “Therefore whoever eats the bread or drinks the cup of the Lord in an unworthy manner, shall be guilty of the body and the blood of the Lord. But a man must examine himself, and in so doing he is to eat of the bread and drink of the cup.” When you come face-to-face with the Lord at the cross, at at the table, you must become keenly aware of the sin for which Jesus died. And the only way to do that is to first examine yourself. Again, J.C. Ryle says, “A sense of our own unworthiness is the best worthines we can bring to the Lord’s table. A deep feeling of our own entire indebtedness to Christ for all we have and hope for is the best feeling we can bring with us.”
When the Son is eclipsed by the sin in your life, the table seems like drudgery. But if you partake of it in such a state, it may just prove lethal. Ryle adds that it should be forever remembered “that the man who is unfit for the Lord’s Supper is unfit to die.” Why? Verses 29-30 say, “For he who eats and drinks, eats and drinks judgment to himself if he does not judge the body rightly. For this reason many among you are weak and sick, and a number sleep.” To celebrate the Lord’s Table without an examined life is to mock the cross, and God will judge…
Is there a sin that is unconfessed? Is there sin that’s not repented of? Is there sin that has gone unchecked? Are there habits in your life that are sinful, in which you are seeing no progress? Here is the place to renounce them, renounce Satan and his associates in your heart, and cling to Jesus and His sacrifice on your behalf. At the table you can enjoy the feast of God’s mercy, the tastes of His forgiveness, the flavor of His love.
Rick Holland, Uneclipsing the Son, p. 116-117.