هُوَ الْأَوَّلُ وَالْآخِرُ وَالظَّاهِرُ وَالْبَاطِنُ وَهُوَ بِكُلِّ شَيْءٍ عَلِيمٌ
He is the First and the Last, the Manifest and the Hidden, and He has knowledge of all things.
Agha Ali Puya Commentary
Commentary on Quran 57:3
[Pooya/Ali Commentary 57:3] (see commentary for verse 2)