Al-Hadid 57:3
هُوَ ٱلْأَوَّلُ وَٱلْـَٔاخِرُ وَٱلظَّـٰهِرُ وَٱلْبَاطِنُ ۖ وَهُوَ بِكُلِّ شَىْءٍ عَلِيمٌ
Huwa al-awwalu wal-akhiru waththahiruwalbatinu wahuwa bikulli shay-in AAaleem
"He is the First and the Last, the Ascendant and the Intimate, and He is, of all things, Knowing."
Al-Hadid 57:3, translation by Sahih International
A short reflection
He is the First and the Last, the Manifest and the Hidden. He has knowledge of all things.