And Jesus ...touched him - It was an offence to the Jews to “touch” a leprous person, and was regarded as making him who did it ceremonially impure, Leviticus 13:3. The act of putting forth his hand and “touching” him, therefore, expressed the intention of Jesus to cure him, and was a pledge that he “was,” in fact, already cured.
Related Commentaries of Matthew 8:3
Matthew 8:3
3 And Jesus put forth his hand, and touched him, saying,I will; be thou clean. And immediately his leprosy was cleansed.