Satan Is Powerless

It has been said that Satan can also see everything on earth and if that is true then why hasn't he killed me? Think about it I have been promoting his death 4 years and I'm still here and if the so called prince of darkness was so powerful he would have got too me and he didn't.Because God will not allow it he is the only one who controls Satan and whether he likes it or now Satan cannot defeat his former father Satan's a loser when it comes to God-Jesus-and Heaven and the glory of them all.