Proof of Christ's Resurrection. We continue along the 50 days of the Easter Season, this week being the octave of eight days of Solemnities celebrating the Easter Resurrection of the Lord. This Sunday, the eighth day and Second Sunday of Easter, is also Divine Mercy Sunday. The Opening Prayer (Collect) says it all: “God of everlasting mercy, who in the very recurrence of the paschal feast [Easter] kindle the faith of the people you have made your own, increase, we pray, the grace you have bestowed, that all may grasp and rightly understand in what font they have been washed [baptized], by whose Spirit they have been reborn, by whose Blood they have been redeemed.” Naturally, being eight days after Easter, our Sunday Gospel reading is from John 20:19-31 , relating when Jesus appeared to the 11 disciples [minus Judas Iscariot] eight days after his resurrection. In the Early Church, those who were called “Ap...