The Lord Jesus entered the passion, he decisively embarked upon the road to the cross; he spoke openly to his disciples of what was to happen to him in Jerusalem, and the words of the Prophet Hosea echoed in his words: “The Son of man will be delivered into the hands of men and they will kill him; and when he is killed, after three days, he will rise” (Mk 9:31).
The Evangelist notes that the disciples “did not understand the saying, and they were afraid to ask him” (v. 32). We too, in the face of death, cannot fail to experience the sentiments and thoughts dictated by our human condition. And we are always surprised and overcome by a God indeed, who draws so close to us that he does not even stop before the abyss of death, who rather passes through it, remaining in the tomb for two days. However, exactly here the mystery of the “third day” occurs. Christ takes on our mortal flesh completely that it may be invested with the glorious power of God, by the breath of the life-giving Spirit who transforms and regenerates it. This is the baptism of the passion (cf. Lk 12:50), which Jesus received for us and about which St Paul writes in the Letter to the Romans. The expression used by the Apostle — “baptized into his death” (Rom 6:3) — never ceases to surprise us, such is the precision with which he summarizes the breathtaking mystery. Christ’s death is the source of life, for into it God poured all of his love, as in an immense cascade, which makes us think of the image of Psalm 42[41]: “Deep calls to deep / at the thunder of your cataracts / all your waves and all your billows have gone over me” (v. 8). The abyss of death is filled by another abyss that is greater still, namely, the love of God, which is such that death no longer has power over Jesus Christ (cf. Rom 8:9), nor over those who are associated with him through faith and baptism: “If we have died with Christ”, says St Paul, “we believe that we shall also live with him” (Rom 6:8). This “living with Jesus” is the fulfilment of the hope prophesied by Hosea: “… and we will live in his presence” (6:2).
[Pope Benedict, homily 3 November 2011]