CCC 1509 “Heal the sick!”1 The Church has received this charge from the Lord and strives to carry it out by taking care of the sick as well as by accompanying them with her prayer of intercession. She believes in the life-giving presence of Christ, the physician of souls and bodies. This presence is particularly active through the sacraments, and in an altogether special way through the Eucharist, the bread that gives eternal life and that St. Paul suggests is connected with bodily health.2

CCC 2121 Simony is defined as the buying or selling of spiritual things.3 To Simon the magician, who wanted to buy the spiritual power he saw at work in the apostles, St. Peter responded: “Your silver perish with you, because you thought you could obtain God’s gift with money!”4 Peter thus held to the words of Jesus: “You received without pay, give without pay.”5 It is impossible to appropriate to oneself spiritual goods and behave toward them as their owner or master, for they have their source in God. One can receive them only from him, without payment.

CCC 2443 God blesses those who come to the aid of the poor and rebukes those who turn away from them: “Give to him who begs from you, do not refuse him who would borrow from you”; “you received without pay, give without pay.”6 It is by what they have done for the poor that Jesus Christ will recognize his chosen ones.7 When “the poor have the good news preached to them,” it is the sign of Christ’s presence.8

CCC 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 Mt 10:8.
2 Cf. Jn 6:54, 58; 1 Cor 11:30.
3 Cf. Acts 8:9-24.
4 Acts 8:20.
5 Mt 10:8; cf. already Isa 55:1.
6 Mt 5:42; 10:8.
7 Cf. Mt 25:31-36.
8 Mt 11:5; cf. Lk 4:18.
9 Cf. Mt 7:21.
10 Cf. Mt 9:38; Lk 10:2; Jn 4:34.