Now Moses was keeping the flock of his father-in-law, Jethro, the priest if Midian; and he led his flock to the west side of the wilderness, and came to Horeb, the mountain of God. And the angel of the Lord appeared to him in a flame of fire out of the midst of a bush; and he looked, and lo, the bush was burning, yet it was not consumed. And Moses said, I will turn aside and see this great sight, why the bush is not burnt."
"Put off your shoes from your feet." What does this command mean? I suggest that it is actually a powerful symbol: It means something like, “Hold on, there, Moses! “Take your sandals off because you’re not going to come to me and enclose me in your own ideas!”