In the book of Revelation, they are represented as rendering Jehovah “sacred service ” in the earthly courtyard of his spiritual temple.
فَفِي سِفْرِ ٱلرُّؤْيَا ،‏ يُوصَفُونَ بِأَنَّهُمْ يُؤَدُّونَ لِيَهْوَهَ « خِدْمَةً مُقَدَّسَةً » فِي ٱلدَّارِ ٱلْأَرْضِيَّةِ لِهَيْكَلِهِ ٱلرُّوحِيِّ .‏