What does Exodus 4:10 mean?
Moses' first resistance to the Lord's call (Exodus 3:10) was doubt in his own importance (Exodus 3:11). His next concern was about proving that he'd really spoken with God (Exodus 3:13; 4:1). Now, God has provided three miraculous signs which Moses can use against skepticism (Exodus 4:8–9).Now, Moses expresses more doubts about himself. He claims to be a poor speaker. There is no suggestion in Scripture that he had an actual speech impediment—though that is possible. It probably means that Moses didn't think of himself as a powerful orator or an eloquent man. He was certainly educated (Exodus 2:10). Later generations would applaud his speaking (Acts 7:22). This may also have been an excuse inspired by fear or intimidation over his mission. Whether he lacked confidence or ability, Moses expresses this to the Lord.
God responds by telling Moses not to worry about his own power. God's presence and guidance will be enough (Exodus 4:11–12).