13 And he went up on the mountain, and called to him those whom he desired; and they came to him. 4 And he appointed twelve, to be with him, and to be sent out to preach 15 and have authority to cast out demons: 16 Simon whom he surnamed Peter; 17 James the son of Zebedee and John the brother of James, whom he surnamed Boanerges, that is, sons of thunder; 18 Andrew, and Philip, and Bartholomew, and Matthew, and Thomas, and James the son of Alphaeus, and Thaddaeus, and Simon the Cananaean, 19 and Judas Iscariot, who betrayed him. Then he went home.
The best gift that Christ has offered to his Apostles is the divine communion. It is in this communion with Christ that they were in communion with the Father. Thus the life of every Christian is de facto a response to this call to live with Christ, and through Him with God.
Each and every one of us is called and sent. Though individually, but always with Christ, and with others. It may appear to be an individual mission, in truth it is a communitarian work, because of the divine communion.
In this vocation, we are no more the same person, rather transformed, by our configuration in Christ. We are called and sent in the name of Christ and by this mission we are called to be like Christ, in thinking and acting, particularly in the accomplishment of the will of the Father.
Thus a personal holiness, though limited in its perfection in us, is elevated through Christ, by the grace that we have received while accepting this mission of Christ. Let us be assured that in this mission we are not alone. There are other brothers and sisters who are called just like us, and especially the Holy Spirit is working in us.
Daily Quote from the early church fathers:
The renaming of Matthew by Jesus, by Bede the Venerable, 672-735 A.D.
"We must not pass over the fact that Matthew had two names, for he was also called Levi, and that name too bears witness to the grace granted to him. Levi means 'added' (or 'a joining') or 'taken up,' signifying that he was 'taken up' through being chosen by the Lord, and 'added' to the number of the apostolic band. Mark and Luke generously chose to use this name alone, so as to not make glaringly conspicuous his former way of life, for he was now their companion in the work of the Gospel (Mark 2:14, Luke 5:27). In setting down the list of the twelve apostles, they simply called him Matthew, not mentioning Levi (Mark 3:18, Luke 6:15). Matthew himself, on the other hand (in accord with what is written, 'The just man is the first accuser of himself; his friend came and searched him out' - Proverbs 18:17), calls himself by his ordinary name when telling of being called from his tax-collector's place, but adds pointedly 'the publican' (Matthew 10:3) - 'Thomas,' he says, 'and Matthew the publican.' In this way he offers to publicans and sinners greater confidence in securing their salvation." (excerpt from HOMILIES ON THE GOSPELS 1.21)