Exodus 3:4-5
Exodus 3:4-5 AMP
When the LORD saw that he turned away [from the flock] to look, God called to him from the midst of the bush and said, “Moses, Moses!” And he said, “Here I am.” Then God said, “Do not come near; take your sandals off your feet [out of respect], because the place on which you are standing is holy ground.”