Window 1 Scene 4 - Theophany of God's name

Moses stands before a burning bush. He removes his sandals and bows down hiding his head in his hands "And Moses hid his face, for he was afraid to look upon God." (Exodus 3 6) He stands bare foot "Take your sandals off your feet, for the place where you stand is holy ground.? (Exodus 3 5). Over the horizon there is Mount Horeb - holy mountain of Exodus. On the left bottom there is a serpent - the symbol of Moses' walking stick: "Take your rod and cast it before Pharaoh, and let it become a serpent." (Exodus 7 9)