An evident sign of the intention of the Nazarene to gather together the community of the Covenant, to demonstrate in it the fulfilment of the promises made to the Fathers who always speak of convocation, unification, unity, is the institution of the Twelve. We heard about this institution of the Twelve in the Gospel reading. I shall read the central passage again: “And he went up into the hills and called to him those whom he desired; and they came to him. And he appointed twelve to be with him, and to be sent out to preach and have authority to cast out demons. The names of the twelve Apostles are these…” (Mk 3: 13-16; cf. Mt 10: 1-4; Lk 6: 12-16).
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The number 12, which evidently refers to the 12 tribes of Israel, already reveals the meaning of the prophetic-symbolic action implicit in the new initiative to re-establish the holy people. As the system of the 12 tribes had long since faded out, the hope of Israel awaited their restoration as a sign of the eschatological time (as referred to at the end of the Book of Ezekiel: 37: 15-19; 39: 23-29; 40-48).
In choosing the Twelve, introducing them into a communion of life with himself and involving them in his mission of proclaiming the Kingdom in words and works (cf. Mk 6: 7-13; Mt 10: 5-8; Lk 9: 1-6; 6: 13), Jesus wants to say that the definitive time has arrived in which to constitute the new People of God, the people of the 12 tribes, which now becomes a universal people, his Church.