"Say, 'O my people, work according to your position,'" meaning: according to your shirk (polytheism). "'Indeed, I am working'" according to what I am upon of guidance. "'Then you will come to know,'" and this is a warning.
﴿قُلْ يَا قَوْمِ اعْمَلُوا عَلَى مكانتكم﴾ أَي: عَلَى شرككم ﴿إِنِّي عَامِلٌ﴾ عَلَى مَا أَنَا عَلَيْهِ من الْهدى ﴿فَسَوف تعلمُونَ﴾ وَهَذَا وَعِيد
