You are reading a tafsir for the group of verses 37:71 to 37:74
فَانظُرْ كَيْفَ كَانَ عَـقِبَةُ الْمُنذَرِينَ إِلاَّ عِبَادَ اللَّهِ الْمُخْلَصِينَ
(Then see what was the end of those who were warned. Except the chosen servants of Allah).
وَلَقَدۡ ضَلَّ قَبۡلَهُمۡ أَكۡثَرُ ٱلۡأَوَّلِینَ
And there had already strayed before them most of the former peoples,
فَانظُرْ كَيْفَ كَانَ عَـقِبَةُ الْمُنذَرِينَ إِلاَّ عِبَادَ اللَّهِ الْمُخْلَصِينَ
(Then see what was the end of those who were warned. Except the chosen servants of Allah).