Exodus 4:11-12

"And Jehovah said unto him, Who made man's mouth? or who maketh a man dumb, or deaf, or seeing, or blind? Is it not I, Jehovah? Now therefore, Go, and I will be with thy mouth, and teach thee what thou shalt speak."

From this, we must conclude that Moses' objection here was a miserable excuse. God refused to honor it. Furthermore, such examples as that found in Exodus 32:11-13 show that Moses actually was an able speaker. "The whole Book of Deuteronomy consists of eloquent speeches by Moses."[14]

The question that rises here is, "Does God purposely make some people to be dumb (mute), deaf, or blind, and others with all such abilities?" In some instances, this is surely true, as in John 9:1-3, but we agree with Fields that, "God is not responsible for all the cases of blindness and deafness."[15] Many human handicaps are clearly the result of sin and/or the violation (whether knowingly or not) of God's eternal laws. The great lesson here is that one should not depreciate or despise the gifts which God has given, nor refuse to use those gifts which men may deem less perfect. Even the most gifted can find no grounds for pride and egotism, because, as Paul stated it, "What hast thou that thou hast not received?" (1 Corinthians 4:7). The answer to that question, of course, is - nothing!

"Now therefore go, and I will be with thy mouth ..." This was God's refusal to honor Moses' objection. The divine order still stood - "GO!"

"And teach thee what thou shalt speak ..." This is very similar to what Jesus promised the holy apostles: "Be not anxious how or what ye shall speak: for it shall be given you in that hour what ye shall speak" (Matthew 10:19). The very greatest importance attaches to this, because, just as the inspiration of the holy apostles stemmed from this very promise, so also must it be understood that the words of Moses are, by the same promise, the Word of God. Jesus understood this and emphasized it, speaking of the Pentateuch in one breath as the word of Moses (Exodus 3:6; Matthew 12:26), and in the next breath as the Word of God (Exodus 3:6; Matthew 22:31,32)!