One of the aspects of the church’s Lord’s-day worship is that we gather as the spiritual army of God to assemble before Jesus our commander. It is a sort of dress review or dress parade before our commander and king, in which we also receive instructions and orders for the coming week.
In the Old Testament, this military review occurred three times a year (Ex. 23:17), on three of Israel’s feast days (Ex. 23:14). This made it equally a kind of military banquet with the commander.
Thus, weekly communion: our dress parade before the king is always accompanied with a banquet.