Exodus Chapter 4, Verse 11
From BibleWiki
11: And the LORD said unto him, Who hath made man's mouth? or who
maketh the dumb, or deaf, or the seeing, or the blind? have
not I the LORD?
11: And the Lord said to Moses, Who has given a mouth to man, and who has made the very hard of hearing, and the deaf, the seeing and the blind? have not I, God?
Jehovah both could and would provide for this defect. He had made man's mouth, and He made dumb or deaf, seeing or blind. He possessed unlimited power over all the senses, could give them or take them away; and He would be with Moses' mouth, and teach him what he was to say, i.e., impart to him the necessary qualification both as to matter and mode.

