The symbols of the Lord's house are simple and plainly understood, and the truths represented by them are of the deepest significance to us.545Evangelism, 273 CCh 298.1
Christ was standing at the point of transition between two economies and their two great festivals. He, the spotless Lamb of God, was about to present Himself as a sin offering, that He would thus bring to an end the system of types and ceremonies that for four thousand years had pointed to His death. As He ate the Passover with His disciples, He instituted in its place the service that was to be the memorial of His great sacrifice. The national festival of the Jews was to pass away forever. The service which Christ established was to be observed by His followers in all lands and through all ages. CCh 298.2
The Passover was ordained as a commemoration of the deliverance of Israel from Egyptian bondage. God had directed that, year by year, as the children should ask the meaning of this ordinance, the history should be repeated. Thus the wonderful deliverance was to be kept fresh in the minds of all. The ordinance of the Lord's Supper was given to commemorate the great deliverance wrought out as the result of the death of Christ. Till He shall come the second time in power and glory, this ordinance is to be celebrated. It is the means by which His great work for us is to be kept fresh in our minds. CCh 298.3
Christ's example forbids exclusiveness at the Lord's Supper. It is true that open sin excludes the guilty. This the Holy Spirit plainly teaches. 1 Corinthians 5:11. But beyond this none are to pass judgment. God has not left it with men to say who shall present themselves on these occasions. For who can read the heart? Who can distinguish the tares from the wheat? “Let a man examine himself, and so let him eat of that bread, and drink of that cup.” For “whosoever shall eat this bread, and drink this cup of the Lord, unworthily, shall be guilty of the body and blood of the Lord.” “He that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body.” 1 Corinthians 11:28, 27, 29. CCh 298.4
None should exclude themselves from the Communion because some who are unworthy may be present. Every disciple is called upon to participate publicly, and thus bear witness that he accepts Christ as a personal Saviour. CCh 298.5
In partaking with His disciples of the bread and wine, Christ pledged Himself to them as their Redeemer. He committed to them the new covenant, by which all who receive Him become children of God, and joint heirs with Christ. By this covenant every blessing that heaven could bestow for this life and the life to come was theirs. This covenant deed was to be ratified with the blood of Christ. And the administration of the Sacrament was to keep before the disciples the infinite sacrifice made for each of them individually as a part of the great whole of fallen humanity. CCh 298.6