Here Jesus showed his compassion to a man stricken with leprosy. Touching the unclean man, and healing him of the disease. Leprosy was and is a horrific disease, and was without a cure in Bible times. While it was often not fatal, it was contagious, progressive, and caused deformation and degeneration of the tissues of the body.
In our time, it can be treated, as it is caused by bacteria. Doctors can administer a concoction of drugs to kill the bacteria.
The contagious nature of the disease as well as the horrific symptoms is why lepers were shunned from society. And why leprosy was determined to be an uncleanness in the law of Moses (cf. Leviticus 14).
This leper could not contain his joy despite being instructed by Jesus to tell no one of the healing. It is intimated that the reason for Jesus’ desire for secrecy was that knowledge of the miracle would impede His work. This is, in fact, exactly what happened.
