conflict between believers and disbelievers

وَلَقَدْ أَرْسَلْنَآ إِلَىٰ ثَمُودَ أَخَاهُمْ صَـٰلِحًا أَنِ ٱعْبُدُوا۟ ٱللَّهَ فَإِذَا هُمْ فَرِيقَانِ يَخْتَصِمُونَ

And We had certainly sent to Thamūd their brother Ṣāliḥ, [saying], "Worship Allāh," and at once they were two parties conflicting.

۞ وَيَـٰقَوْمِ مَا لِىٓ أَدْعُوكُمْ إِلَى ٱلنَّجَوٰةِ وَتَدْعُونَنِىٓ إِلَى ٱلنَّارِ

And O my people, how is it that I invite you to salvation while you invite me to the Fire?