Chris Tento is a wonderful pastor explaining the details of the Lord’s Supper. He has extensively studied and researched and then written on the subject in multiple posts. Here is just a sample
24 who Himself bore our sins in His own BODY on the tree, that we, having died to sins, might live for righteousness–by whose stripes you were healed. (1 Peter 2:24).
The above scripture actually sums up the meaning of the bread of the Lord’s Supper. His body as referred to in the above scripture is represented by the bread. His body was delivered up to deliver us from sin so that we can live for Him. This scripture speaks of being set free from sin, not just forgiven for sin. As we will see, the cup speaks of forgiveness for sin, but here, the message of the bread is one of us being set free from or delivered out of our sin through Christ’s death on the cross. There are numerous other scriptures that make this point; i.e., Romans 6:1-11, Romans 6:18, Galatians 2:20, II Corinthians 5:14-15, etc.
Let me repeat, the above mentioned scripture tells us that Jesus bore our sins in His BODY (bread) on the cross so that we 1) have been set free from sin, 2) can live for righteousness. This, in a nutshell, is the meaning of the bread of the Lord’s supper. Now, there are other meanings to the bread, but the above is the fundamental and primary meaning. There are other scriptures that make the same point, but here we can clearly see the meaning of His body delivered up for us.
According to scriptures, His body and our bodies are primarily for doing things on the earth. Through His body delivered up for us, He set us free from doing sin and living for ourselves, so that we can use our bodies to live right; to live for God and others like He did with His body. A body is all about doing. The bread symbolizes His body. By symbolically eating His body through the bread of the Lord’s Supper, we are 1)eating our deliverance out of our selfishness and sin, and we are 2) eating the Lord’s will (righteousness, love). To repeat point number two above; eating the Lord’s body is eating His will. To repeat point number one; eating the Lord’s body is eating deliverance from our own wills (sin).
Read the entire commentary of the Lord’s Supper here