Exodus 4:17

Now pick up that staff with your hand. You'll use it to perform the signs."

Exodus 4:2

"What's that in your hand?" the LORD asked him. Moses answered, "A staff."

Exodus 7:9-20

"When Pharaoh says to you, "Perform a miraculous sign,' then you are to say to Aaron, "Take your staff and throw it in front of Pharaoh.' It will become a serpent."

1 Corinthians 1:27

But God chose what is nonsense in the world to make the wise feel ashamed. God chose what is weak in the world to make the strong feel ashamed.

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