Exodus 3:1-4 New King James Version (NKJV)

Moses at the Burning Bush

3 Now Moses was tending the flock of Jethro his father-in-law, the priest of Midian. And he led the flock to the back of the desert, and came to Horeb, the mountain of God. ² And the Angel of the Lord appeared to him in a flame of fire from the midst of a bush. So he looked, and behold, the bush was burning with fire, but the bush was not consumed. ³ Then Moses said, “I will now turn aside and see this great sight, why the bush does not burn.”

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.”