Note 1 at Mt 8:15: Jesus often healed people by touching them (Mt 8:3, 9:29, 20:34; Mr 7:33; Lu 7:14, and 22:51), and others received their healing as they touched Jesus (Mt 14:36; Mr 3:10, 5:28-30, 6:56, and 8:22). Lu 6:19 reveals that the reason this happened was that virtue (or power) went out of him and healed them all. We can transmit the power or the anointing of God through the laying on of hands (Mr 16:18 and Heb 6:2). The virtue of God can even be transmitted to objects and then taken to the person who needs healing or deliverance (Ac 19:11-12).

Note 2 at Mt 8:15: Many people today have the mistaken idea that to minister, they have to preach or teach. However, it is evident that Peter's mother-in-law didn't preach to Jesus and His disciples. This shows that ministry is to supply the needs of others, whether physically or spiritually. Peter's mother-in-law's ministry to Jesus was probably fixing Him food, washing His feet, etc. (see note 3 at Joh 13:5).