Verse 41. - Observe in this verse that Jesus stretched forth his hand and touched the leper. Thus he showed that he was superior to the Law, which forbade contact with a leper. He touched him, knowing that he could not be defiled with the touch. He touched him that he might heal him, and that his Divine power of healing might be made manifest. "Thus," says Bode, "God stretched out his hand and touched the human nature in his incarnation, and restored to the Church those who had been cast out, that they might be able to offer their bodies a living sacrifice to him of whom it is said, 'Thou art a priest for ever after the order of Molchisedec.'" I will; be thou clean; literally, be thou made clean (καθαρίσθητι). It is well observed here by St. Jerome that our Lord aptly answers both the petitions of the leper. "If thou wilt;" "I will." "Thou canst make me clean;" "Be thou made clean." Indeed, Christ gives him more than he asks for. He makes him whole, not only in body, but in spirit. Thus Christ, in his loving-kindness, exceeds the wishes of his supplicants, that we may learn from him to do the same, and to enlarge our hearts, both towards God and towards our brethren.

1:40-45 We have here Christ's cleansing of a leper. It teaches us to apply to the Saviour with great humility, and with full submission to his will, saying, Lord, if thou wilt, without any doubt of Christ's readiness to help the distressed. See also what to expect from Christ; that according to our faith it shall be to us. The poor leper said, If thou wilt. Christ readily wills favours to those who readily refer themselves to his will. Christ would have nothing done that looked like seeking praise of the people. But no reasons now exist why we should hesitate to spread the praises of Christ.And Jesus, moved with compassion,.... At the sad and deplorable case the poor man was in, being a merciful high priest, and not with a desire of popular applause, and vain glory:

put forth his hand and touched him; though the leprosy was spread all over him, and there was no place clean, and touching him was forbidden by the law:

and saith unto him, I will be thou clean; See Gill on Matthew 8:3.