In this window, the figure holds a chalice in his right hand. The scroll that is draped across his chest reads, "This do in remembrance of me." This figure symbolizes the Sacrament of the Holy Communion which was instituted by Jesus Christ on the last evening before his crucifixion.
"And [Jesus] took bread, gave thanks and broke it, and gave it to [his disciples], saying, 'This is my body given for you; do this in remembrance of me.'"
On the night on which he was betrayed, Jesus instructed his disciples to participate in the sacrament of communion to remember him always.
More than just remembering that Jesus lived, believers for all time are to remember that Jesus suffered and died. They are never to forget the salvation which comes through Christ's sacrifice on the cross. The bread and the cup are not just symbols, but rather, a sign and seal of that work of God's grace whereby a believer continually derives spiritual nourishment and strength, forgiveness, cleansing, and sanctification, from the benefits of Christ's one sacrifice and his giving of those benefits to believers.
The Dalzell Window was presented in memory of James Dalzell (1800-1879) and Martha Duff Dalzell (1807-1879).