I've looked into that aspect myself, Kristina, and it makes a heck of a lot of sense, huh? I think the reason why many people look back in history on it, is that they remember the command that God made for the men to be circumsized....it was a covenant with God. Anytime in the Old Testament when God put his foot down, so to speak, about something like this, it appears that all of those things were'nt just crazy rules he came up with, but it was his design to protect his people....ex: not eating certain things, and the other cleanliness "rules"....all the things that God said not to eat in Leviticus are things that we can prove today are terrible and unhealthy foods. Anyhow, it makes sense why God would make circumcision necessary so that he could protect them. I do not claim to be a Bible scholar by the way, it's a tidbit that we looked into when we were researching it the first time. Interesting anyway! As a sidenote just to be clear though, I'm not trying to say that men who are uncircumsized today are not in covenant with God. The new testament is clear on that....anyway!
