Iblis refused to prostrate to Adam, was arrogant and became of the disbelievers.
وَإِذۡ قُلۡنَا لِلۡمَلَٰٓئِكَةِ ٱسۡجُدُواْ لِأٓدَمَ فَسَجَدُوٓاْ إِلَّآ إِبۡلِيسَ أَبَىٰ وَٱسۡتَكۡبَرَ وَكَانَ مِنَ ٱلۡكَٰفِرِينَ ٣٤
And [mention] when We said to the angels, "Prostrate before Adam"; so they prostrated, except for Iblees. He refused and was arrogant and became of the disbelievers