So when the LORD saw that he turned aside to look, God called to him from the midst of the bush and said, "Moses, Moses!" And he said, "Here I am."
Exodus 3:4
Surrounding context
3:3 Then Moses said, "I will now turn aside and see this great sight, why the bush does not burn."
3:4 So when the LORD saw that he turned aside to look, God called to him from the midst of the bush and said, "Moses, Moses!" And he said, "Here I am."
3:5 Then He said, "Do not draw near this place. Take your sandals off your feet, for the place where you stand is holy ground."