Satan, at one point was an angel, Lucifer, that decided he wanted to be more powerful than God. The angels do not have a free choice like the free choice God has given us. We can freely choose to follow God or not, but the angels follow God or it's over for them. When he decided to become more powerful than God ( which is impossible) He was exiled from Heaven with all of his followers and sent to a place God made for them called H e l l. H e l l was not made for humans to go to if they did not except Jesus, it was made for the Devil. We go to H e l l because we have a sinful nature because Adam an Eve disobeyed God. We can except Jesus and be forgiven, but the angels don't got a choice, they blow it, it's over.