"That evening after sunset the people brought to Jesus all the sick and demon-possessed. The whole town gathered at the door, and Jesus healed many who had various diseases. He also drove out many demons." (Mark 1: 32 - 34).
After Jesus was baptized in the Jordan River, the Spirit drove Him into the desert where He prayed and fasted for 40 days. During this period too, He underwent vigorous temptation from the devil. (Matthew 4: 1 - 11). Now He was ready to start His ministry. He exercised His ministry in three areas.
#1. He taught everyone who had ears to listen.
#2. On some occasions, He fed everyone who attended His revival meetings.
#3. When the sick and the demon possessed were brought to Him, the Gospels report that He healed many and cast out many demons.
What does the Catechism teach about illness?
"Illness and suffering have always been among the gravest problems confronted in human life. In illness, man experiences his powerlessness, his limitations, and his finitude. Every illness can make us glimpse death." (CCC 1500)
"Illness can lead to anguish, self-absorption, sometimes even despair and revolt against God. It can also make a person more mature, helping him discern in his life what is not essential so that he can turn toward that which is. Very often illness provokes a search for God and a return to him." (CCC 1501).
The Church exercises her healing ministry through the Anointing of the Sick:
"By the sacred anointing of the sick and the prayer of the priests the whole Church commends those who are ill to the suffering and glorified Lord, that he may raise them up and save them. And indeed she exhorts them to contribute to the good of the People of God by freely uniting themselves to the Passion and death of Christ." (CCC 1499).
Prayer for the sick:
"God our Father, your Son accepted our sufferings to teach us the virtue of patience in human illness. Hear the prayers we offer for our sick brother/sister. May all who suffer pain, illness, or disease realize that they have been chosen to be saints and know that they are joined to Christ in his suffering for the salvation of the world. We ask this through Christ our Lord. Amen."