Exodus 3:11

And the angel of Yahweh appeared to him in a blazing fire from the midst of the bush; and he looked, and behold, the bush was burning with fire, yet the bush was not consumed.

Then Moses said to Yahweh, “Please, Lord, I have never been a man of words, neither recently nor in time past, nor since You have spoken to Your slave; for I am one with a hard mouth and a hard tongue.”

But he said to Him, “O Lord, with what shall I save Israel? Behold, my clan is the least in Manasseh, and I am the youngest in my father’s house.”

Then David the king went in and sat before Yahweh, and he said, “Who am I, O Lord Yahweh, and what is my house, that You have brought me this far?