"Then Moses said to the LORD, 'Please, Lord, I have never been eloquent, neither recently nor in time past, nor since You have spoken to Your servant; for I am slow of speech and slow of tongue.' The LORD said to him, 'Who has made man’s mouth? Or who makes him mute or deaf, or seeing or blind? Is it not I, the LORD?'"
Instead of putting his focus on God and His abilities, Moses here is fixing his eyes on himself and his inabilities. He forgot that it is was God who called him to serve Him and it is God who works in the called to accomplish His purpose. Paul understood this when he wrote to the Philippians, "for it is God who is at work in you, both to will and to work for His good pleasure." (Phil 2:13) God's response to Moses may be hard for us to accept. God makes people mute, deaf or blind? How could a loving God do that? We must turn to scripture for the answer. John 9:1-3: "As He passed by, He saw a man blind from birth. And His disciples asked Him, 'Rabbi, who sinned, this man or his parents, that he would be born blind?' Jesus answered, 'It was neither that this man sinned, nor his parents; but it was so that the works of God might be displayed in him.'" Jesus went on to heal the blind man for the glory of the Lord. It is for God's glory that weaknesses exist in us, not for our punishment. "God has made you seeing or blind. He has made you hearing or deaf. Why did He do that? For punishment? Generational sin that your parents or grandparents committed? No, but because He loves you. Because He wants your life to glorify Him. He wants His works to be displayed in you." (Pastor Ron Daniel)