Quran 37:170 — The Arrangers (Al-Saffat)

فَكَفَروا بِهِ ۖ فَسَوفَ يَعلَمونَ

But they disbelieved, and they will surely find out.

[37:169] "we would have been worshipers; devoted to GOD alone."

[37:171] Our decision is already decreed for our servants the messengers.