Aren't we like Peter in some ways? We have to have Jesus' parables explained to us. That
is one reason we come to church.
Maybe something in our background, our family traditions make it harder to understand.
Just one example might be pork, which Jews aren't supposed to eat. And we might have a rule
against putting any wine in our mouth (except for communion) -- even though our Lord drank it
at the Last Supper. (I had one pastor tell me that Jesus really drank grape juice.)
This passage is also including, not only food, but also thoughts which could be evil. That