Exodus 3:11

3:11 Moses said to God, “Who am I, that I should go to Pharaoh, or that I should bring the Israelites out of Egypt?”

Exodus 4:10

4:10 Then Moses said to the Lord, “O my Lord, I am not an eloquent man, neither in the past nor since you have spoken to your servant, for I am slow of speech and slow of tongue.”

Jeremiah 1:6

1:6 I answered, “Oh, Lord God, I really do not know how to speak well enough for that, for I am too young.”

Luke 1:34

1:34 Mary said to the angel, “How will this be, since I have not had sexual relations with a man?”