This sermon examines the theological significance and proper observance of the Lord's Supper, arguing that it is a central act of worship rather than a mere memorial. It critiques modern practices that diminish the ordinance's spiritual weight or treat it as a casual convenience, emphasizing instead the need for reverence and communal unity. By analyzing passages from 1 Corinthians, Luke, and Acts, the text highlights that the bread and cup represent participation in Christ's body and blood, requiring believers to examine their relationships with one another to avoid judgment. The instruction calls for distinct actions for the bread and the cup, faithful to the original institution, and advocates for frequent, likely weekly, observance to maintain the spiritual health of the church.