The question that was put forth by God to Moses in Exodus 4:2, not as being ignorant of what it was, but to draw the attention of Moses to the fact that what God will use to deliver a person is already in the possession of such a person. The Israelites cried out to God and God needed a prophet, God had to use what was already in the hand of Moses.
Most people today suffer because they are ignorant of the blessings which God has already given to them. Some even disregard the fact that it's the talent or gift they have, trade they learnt and their little effort is the pathway to the top for them. When the Lord Jesus was about feeding the over 5,000 people, He used what was in the hands of a little boy...five loaves of bread and two fishes . The angel of the Lord, as a sign of acceptance of Gideon's offering, used a staff in the environment and fire came from the rock, not from heaven which consumed the offering.
Just as God asked Moses, 'What do you have in your hands? What are you still holding on tightly to that could prevent you from entering into the Kingdom of God?' The only way to multiply this gift God has given you is to release it for Jesus. God will use it, only if you are willing to lose it. Alvin Slaughter in one of his songs said lyrics, 'Let Jesus take it, bless it, break it and give it. ' God wants to deliver a soul, heal a nation and raise a generation, release your heart to Him and He will use you just as you are!