CIC 765 The Lord Jesus endowed his community with a structure that will remain until the Kingdom is fully achieved. Before all else there is the choice of the Twelve with Peter as their head.1 Representing the twelve tribes of Israel, they are the foundation stones of the new Jerusalem.2 The Twelve and the other disciples share in Christ’s mission and his power, but also in his lot.3 By all his actions, Christ prepares and builds his Church.

CIC 787 From the beginning, Jesus associated his disciples with his own life, revealed the mystery of the Kingdom to them, and gave them a share in his mission, joy, and sufferings.4 Jesus spoke of a still more intimate communion between him and those who would follow him: “Abide in me, and I in you. .. I am the vine, you are the branches.”5 And he proclaimed a mysterious and real communion between his own body and ours: “He who eats my flesh and drinks my blood abides in me, and I in him.”6

CIC 2122 “The minister should ask nothing for the administration of the sacraments beyond the offerings defined by the competent authority, always being careful that the needy are not deprived of the help of the sacraments because of their poverty.”7 The competent authority determines these “offerings” in accordance with the principle that the Christian people ought to contribute to the support of the Church’s ministers. “The laborer deserves his food.”8

CIC 2611 The prayer of faith consists not only in saying “Lord, Lord,” but in disposing the heart to do the will of the Father.9 Jesus calls his disciples to bring into their prayer this concern for cooperating with the divine plan.10

1 Cf. Mk 3:14-15.
2 Cf. Mt 19:28; Lk 22:30; Rev 21:12-14.
3 Cf. Mk 6:7; Lk 10:1-2; Mt 10:25; Jn 15:20.
4 Cf. Mk 1:16-20; 3:13-19; Mt 13:10-17; Lk 10:17-20; 22:28-30.
5 Jn 15:4-5.
6 Jn 6:56.
7 CIC, can. 848.
8 Mt 10:10; cf. Lk 10:7; 2 Cor 9:5-18; 1 Tim 5:17-18.
9 Cf. Mt 7:21.
10 Cf. Mt 9:38; Lk 10:2; Jn 4:34.