... Do you believe he is a figment of someone's imagination or the Creator? Do you view Him as your Heavenly Father?
In Isaiah we see His sovergnty. The seraphin angels cried one to another, holy, holy, holy -- honoring the Father, the Son, and the Holy Spirit.
After seeing God high and lifted up, Isaiah knew he was a sinner. He said, "I am undone, for I am a man of unclean lips and dwell with people of unclean lips." Isaiah had to have the proper view of God to have the proper view of himself. He repented. Repentance is important.
The angel brought a live coal and laid it on his lips, saying, "Iniquity is taken away, and thy sin is purged." When you get the proper view of God and repent, He will forgive you, and only then can He use you.
Isaiah 6:8 Also, I heard the voice of the Lord, saying, Whom shall I send and who will go for us? Then said I, "Here am I, send me."
How is your view of God? Have you accepted Christ as your personal Savior? Have you followed Him in baptism? Can He use you?