Exodus 15:25

15:25 He cried out to the Lord, and the Lord showed him a tree. When Moses threw it into the water, the water became safe to drink. There the Lord made for them a binding ordinance, and there he tested them.

Exodus 16:4

16:4 Then the Lord said to Moses, “I am going to rain bread from heaven for you, and the people will go out and gather the amount for each day, so that I may test them. Will they will walk in my law or not?

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?”

Exodus 17:7

17:7 He called the name of the place Massah and Meribah, because of the contending of the Israelites and because of their testing the Lord, saying, “Is the Lord among us or not?”

Exodus 20:20

20:20 Moses said to the people, “Do not fear, for God has come to test you, that the fear of him may be before you so that you do not sin.”