But if you turn, then I have already given you what I sent you with. And my Lord will replace you with another people, and you will not harm them at all. Indeed, the Lord preserves all things. " Qur'an 11:57 | Surah Hud One microscopic invader. One special shield. A macrophage recognizes, ingests and destroys E. coli through phagocytosis - an unusual process of the innate immune system. "Allah does not need us; we are the ones who need him. Moving away from his guidance does not diminish his greatness. He can replace any people with others that obey him. Never take his guidance for granted.