Communion is a precious time in the life of a believer when he is focused on remembering and giving thanks for the sacrifice of Jesus Christ on the cross. This time is also known as the Lord’s Supper. Since Communion is a shared experience with fellow believers the word Communion is a good descriptive word for the activity. In some churches this celebration of the Lord’s Supper is called the Eucharist which means to give thanks for the elements as Christ did at the original Lord’s Supper celebration.
The gospel accounts of the Lords Supper talk about the events surrounding the celebration (Matthew 26:26-29; Mark 14:17-25; Luke 22:7-22; and John 13:21-30). In 1 Corinthians 11 Paul the Apostle gives instructions on preparing for and taking Communion. He starts out by explaining that Communion is a sacred time and that it should not be considered a lighthearted event (vs. 18-22). The focus of Communion is to remember the Lord and thank Him for His sacrifice. It is not a normal meal where the focus is on the food.
The unleavened bread represents the body of Christ. It is unleavened because in the Bible leaven is a picture of sin. Jesus took the bread, prayed over it, brake it and shared it with His disciples telling them to remember Him when they took Communion with one another.
Though the Bible speaks of wine as the liquid that was consumed during the Lord’s Supper, many churches use grape juice. The word for wine in Greek is the same word that would be used for grape juice. And, as grape juice is a non-fermented (unleavened) version of wine, many churches feel it is more in keeping with the idea of unleavened bread. Jesus too took the juice which represented His blood, blessed it and shared it with His disciples.