No, no, no. There is no Satan, God just made him up so he could stay in power. As long as all the angels believe they are under threat of foreign invasion, they'll keep on accepting God as their dictator and not blink at the huge defense budget of Heaven. Occasionally God has to dress up as Satan and torture a few billion humans for eternity to keep the masquerade going, but he doesn't mind the extra work as it pays off handsomely. And, of course, if the angels ever find out they'll lynch him. It was a near miss two millennia ago when a sex scandal broke out, God was living with an underaged young man, but God quickly sent the guy to earth and spun some story about incarnation, redemption, etc etc. A very confusing piece of piffle, but it satisfied Heaven's media and the populace fell for it, so now God can live openly with a hot young guy who calls him "Daddy" and not suffer any ill press from it. God's kind of a sleazeball, really.