John uses the feeding of the five thousand on the mountain to show us that the Lord’s Supper is a Spiritual, or heavenly meal, that is intended to feed our souls rather than our bellies
The early church followed the pattern set by the Risen Lord of having the communion meal each Sunday when they gathered, which is fully consistent with, and expected by, the theology behind the Lord’s Supper.
The Lord’s Supper may properly be referred to as the Dominion Supper or the Judgment Supper dividing the believers from the unbelievers (as a preview of the Last Day when the sheep will be separated from the goats) and serves as a call to the nonbeliever to repent and believe in Jesus Christ.
Paul's instruction to examine yourself is not a call to endless introspection but a call to come as one body (without divisions or factions) and, together, declare absolute dependence upon the grace of Jesus Christ.
The sharing of a loaf of bread and a cup of wine demonstrates that the church is one body, made one through belonging to Christ.
In the Lord’s Supper we have both the image of communion between the Holy God and sinful man as well as a picture of the price that was paid to obtain that communion - the death of Christ.
The Lord’s Supper teaches what it means to receive Jesus Christ by faith, through the ministry of the Holy Spirit - signifying and sealing this reality to us.
The Lord’s Supper is a memorial where we not only remember what Christ has done for us, but we call upon the Father to remember the work of Christ on our behalf and bless us because of it.
Through the sacraments, God represents the gospel of grace (salvation through faith alone) to us and guarantees us that he irrevocably stands behind his promise to save all who come to him in faith.
The life of the sacrificial animals was not enough to give life to the spiritually dead, a better blood was needed and so God's children were forbidden to partake of the blood, until the better sacrifice came in Jesus Christ.