Exodus 4:10-12 NIV

10 Moses said to the LORD, "O Lord, I have never been eloquent, neither in the past nor since you have spoken to your servant. I am slow of speech and tongue."1

References for Exodus 4:10

11 The LORD said to him, "Who gave man his mouth? Who makes him deaf or mute?2 Who gives him sight or makes him blind?3 Is it not I, the LORD?

References for Exodus 4:11

12 Now go;4 I will help you speak and will teach you what to say."5

References for Exodus 4:12