You ask me how I know He lives. He lives within my heart. There are no words that can express His Joy that I feel when thinking about Him and while reading and meditating on His Word.
There are many gods, if it were not so, God would never have said "Thou shall have no other gods before me". There are thousands of gods, goddesses, demigods, Greek gods but there is only one True God, The Creator of the world and the heavens.
Satan wanted and still wants to be god, he lures people into thinking that they can become gods. That's how he lured Adam and Eve into eating the apple. He told her she could be like God and Satan is doing it today. There are people living their lives to become a god instead of living their life because they love God and totally appreciate what He did for us. There is a big difference and God knows our hearts.
God gave us free will to choose any god we want. He did not make us robots. He chose us but he also allows us to choose Him. Of all the gods that have walked on this earth. There is only One that has an empty grave. This is one of the reasons I chose him. He Is Alive!
