Exodus 3:4

3:4 When the Lord saw that he had turned aside to look, God called to him from within the bush and said, “Moses, Moses!” And Moses said, “Here I am.”

Exodus 16:15

16:15 When the Israelites saw it, they said to one another, “What is it?” because they did not know what it was. Moses said to them, “It is the bread that the Lord has given you for food.

Exodus 17:2

17:2 So the people contended with Moses, and they said, “Give us water to drink!” Moses said to them, “Why do you contend with me? Why do you test the Lord?”