Word by Word Analysis

فَإِنِ ٱسْتَكْبَرُوا۟ فَٱلَّذِينَ عِندَ رَبِّكَ يُسَبِّحُونَ لَهُۥ بِٱلَّيْلِ وَٱلنَّهَارِ وَهُمْ لَا يَسْـَٔمُونَ ۩ 38

But if they are arrogant - then those who are near your Lord [i.e., the angels] exalt Him by night and by day, and they do not become weary.