Bible Verses About Preaching: Moses, slow of speech

But Moses said vnto the Lord, Oh my Lord, I am not eloquent, neither at any time haue bene, nor yet since thou hast spoken vnto thy seruant: but I am slowe of speach and slowe of tongue.

Then the Lord said vnto him, Who hath giuen the mouth to man? or who hath made the domme, or the deafe, or him that seeth, or the blinde? haue not I the Lord?

Therefore goe nowe, and I will be with thy mouth, and will teach thee what thou shalt say.