Ex 13, 4-9 On this day you shall explain to your son

(Ex 13, 4-9) On this day you shall explain to your son

[4] This day of your departure is in the month of Abib. [5] Therefore, it is in this month that you must celebrate this rite, after the LORD, your God, has brought you into the land of the Canaanites, Hittites, Amorites, Hivites and Jebusites, which he swore to your fathers he would give you, a land flowing with milk and honey. [6] For seven days you shall eat unleavened bread, and the seventh day shall also be a festival to the LORD. [7] Only unleavened bread may be eaten during the seven days; no leaven and nothing leavened may be found in all your territory. [8] On this day you shall explain to your son, 'This is because of what the LORD did for me when I came out of Egypt.' [9[ It shall be as a sign on your hand and as a reminder on your forehead; thus the law of the LORD will ever be on your lips, because with a strong hand the LORD brought you out of Egypt.

(CCC 1094) It is on this harmony of the two Testaments that the Paschal catechesis of the Lord is built (Cf. DV 14-16; Lk 24:13-49), and then, that of the Apostles and the Fathers of the Church. This catechesis unveils what lay hidden under the letter of the Old Testament: the mystery of Christ. It is called "typological" because it reveals the newness of Christ on the basis of the "figures" (types) which announce him in the deeds, words, and symbols of the first covenant. By this re-reading in the Spirit of Truth, starting from Christ, the figures are unveiled (Cf. 2 Cor 3:14-16). Thus the flood and Noah's ark prefigured salvation by Baptism (Cf. 1 Pet 3:21), as did the cloud and the crossing of the Red Sea. Water from the rock was the figure of the spiritual gifts of Christ, and manna in the desert prefigured the Eucharist, "the true bread from heaven" (Jn 6:32; cf. 1 Cor 10:1-6). (CCC 613) Christ's death is both the Paschal sacrifice that accomplishes the definitive redemption of men, through "the Lamb of God, who takes away the sin of the world" (Jn 1:29; cf. 8:34-36; 1 Cor 5:7; 1 Pt 1:19), and the sacrifice of the New Covenant, which restores man to communion with God by reconciling him to God through the "blood of the covenant, which was poured out for many for the forgiveness of sins" (Mt 26:28; cf. Ex 24:8; Lev 16:15-16; 1 Cor 11:25).