When I was growing up I remember really liking my Uncle Michael – we used to call him Uncle Mickey. I didn’t get to see him very often, but I so looked forward to his visits. I only found out much later why he didn’t come to visit us more. He felt ashamed, he thought we wouldn’t want to see him, he believed he wasn’t worth seeing. You could say he felt “unclean.”
The notion of uncleanness was a very important one in ancient Jewish culture, and it was applied to both food and people. Reasons for such laws included, for example, concerns over hygiene or the creation of a unique Jewish identity. Originally, they were never meant to indicate a person’s state of sin or social worth, but by the time of Jesus being pronounced “unclean” could put you in the category of moral failure and social outcast.