Surah Al-Hadid, ayah 3

57:3

هُوَ ٱلۡأَوَّلُ وَٱلۡأٓخِرُ وَٱلظَّٰهِرُ وَٱلۡبَاطِنُۖ وَهُوَ بِكُلِّ شَيۡءٍ عَلِيمٌ ٣

Huwal-awwalu wal-ākhiru waz-zāhiru wal-bātinu wahuwa bikulli shay'in 'alīm

He is the First1623 and the Last,1624 the Ascendant1625 and the Intimate,1626 and He is, of all things, Knowing.

Footnotes

1623 Before whom nothing existed. Also, He who is supreme, foremost or uppermost.

1624 Enduring eternally when nothing else remains.

1625 Nothing being above Him. Another meaning is "the Apparent," i.e., evident through His creation and revelation.

1626 Nothing being nearer than Him by way of His knowledge. Another meaning is "the Unapparent," i.e., concealed from man's physical senses.