Bible Verses About Miracles: Were evidences of a divine commission

Moshe replied, "But I'm certain they won't believe me, and they won't listen to what I say, because they'll say, 'ADONAI did not appear to you.'"

ADONAI answered him, "What is that in your hand?" and he said, "A staff."

He said, "Throw it on the ground!" and he threw it on the ground. It turned into a snake, and Moshe recoiled from it.

Then ADONAI said to Moshe, "Put your hand out and take it by the tail." He reached out with his hand and took hold of it, and it became a staff in his hand.

"This is so that they will believe that ADONAI, the God of their fathers, the God of Avraham, the God of Yitz'chak and the God of Ya'akov, has appeared to you!"

And they went out and proclaimed everywhere, the Lord working with them and confirming the message by the accompanying signs.