Exodus 3:3-5

Amplified Bible

³ So Moses said, “I must turn away [from the flock] and see this great sight—why the bush is not burned up.” ⁴ 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.” ⁵ 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.”