Surah 16

Surah 16:4

"He created the human from a drop, and suddenly he (becomes) a clear adversary."

16.4 – suddenly he (becomes) a clear adversary
The Quran says that the human is an opponent or “adversary.” See the discussion of the Quran’s view of human nature at 79.40.

- from The Quran with Christian Commentary: A Guide to Understanding the Scripture of Islam