No sermon, however eloquent it may be, can speak as effectively as the whole congregation in joint participation, when faithfully, solemnly, and discerningly observing this sacred meal. The food used in the institution of the Lord's supper was the same as that used in the Passover Feast. There were two elements used in the appointment of the Lord's supper. Unleavened bread was bread without any yeast or leavening agent. Surely we cannot think of any element that would better picture to us the purity of the body of the Son of God on the cross.
Bread is grain that has been harvested, crushed, and baked.
The life has been taken from it. Therefore, in the same manner He referred to the unleavened bread and to the fruit of the vine only as a representation of His body and His blood. They are to us, as Christians, His body and His blood by faith. There is no Biblical authorization for any to observe the Lord's supper except those who are in the Lord's body, His Church, the Kingdom of God. Participation, therefore, is not for those who reject the body and blood of the Lord, those who think so little of the gospel as to reject the commands.