1 Corinthians 11:26 shows that the Lord's Supper is a means of proclamation. Through the Lord's Supper, Christians proclaim the death of Christ to be a necessary, sacrificial, and covenantal death. Christians proclaim this during the Lord's Supper by grieving over sin, rejoicing in deliverance, and spreading the gospel of grace.
Source: Evangelical Times, 1998. 3 pages.