Jesus said in John 6:35 that He “…is the Bread of Life. He who comes to me shall never hunger, and he who believes in me shall never thirst.”
This is the reason Christians say “healing is our bread.” We believe that we have a covenant right with the father by the blood of Jesus to be healed. When we partake of Holy Communion, we are remembering what Jesus did for us on the cross.
This event is also referred to as the ‘Lord’s Supper.’ The event is recorded in the Bible in Matthew 26:26-30, Mark 14:22-26 and in Luke 22:1-2 3.
“I receive from the Lord that which I also delivered to you; Lord Jesus on the night in which He was betrayed. When He had given thanks, He broke the bread and said, ‘This is my Body which is broken for you; do this in remembrance of Me.’ In the same manner he also took the cup after supper saying, ‘This is the New covenant in my blood. This do, as often as you drink it, in remembrance of Me. For as often as you eat this bread and drink this cup, you proclaim the Lord’s death till he comes,’” 1 Corinthians 11:23-26.
We are not to partake of the Lord’s Supper in an unworthy manner. If you do the Bible says that you will bring judgment upon yourself (1st Corinthians 11:27-32) This is referring to, if you have sin in your life, repent and get rid of it before you take the Communion. Only those individuals that are born again believers should take communion. ‘Born again’ means that you believe in your heart that Jesus is the one and only way to the Father.
Born again also means that if you have first believed in your heart that Jesus is the one and only way to salvation, you must confess this aloud.
Some religions have varied interpretations of what they take and how their congregation should take communion and what it means to bring judgment upon self.
For more information you can read 1 Corinthians 11: 17-33 and see what Paul says about the proper conduct for observing the Lords’ Supper.