One of the most difficult questions for me, is why did God even bothered creating his fallen son Lucifer, if he knew what destruction he would bring to his creation? But God created good and evil out of nothing, and knew when he created, there will be a fall brought about by Satan / Lucifer, and that he would have to send his first created, firstborn Son, Christ Yeshua to separate all God's sheep from the goats, and to recreate a new heaven and earth, for only his sheep devoid of any evil forever, and banish all evil to the bottomless pit of eternal damnation.