Exodus 3:4-6

When the LORD saw that he had gone over to look, God called out to him from the bush, “Moses, Moses!” “Here I am,” he answered. “Do not come closer,” he said. “Remove the sandals from your feet, for the place where you are standing is holy ground.” Then he continued, “I am the God of your father, the God of Abraham, the God of Isaac, and the God of Jacob.” Moses hid his face because he was afraid to look at God.