Tafsir of Ta-Ha 20:116

وإذ قلنا للمﻼإيكة اسجدوا ﻻإدم

And when We said to the angels: "Prostrate yourselves to Adam.'' He, Allah mentions how Adam was honored and what respect was given to him. He mentions how He favored him over many of those whom He created. A discussion of this story has already preceded in Surah Al-Baqarah, Surah Al-A`raf, Surah Al-Hijr and Surah Al-Kahf. It will also be mentioned again at the end of Surah Sad. In this story, Allah mentions the creation of Adam and that He commanded the angels to prostrate to Adam as a sign of honor and respect. He also explains the enmity of Iblis for the Children of Adam and for their father, Adam, before them. Due to this Allah says,

فسجدوا إﻻ إبليس أبى

They prostrated themselves (all) except Iblis; he refused. This means that he refrained from prostrating and became arrogant