Al-Hadid 57:3

He is the First[2] and the Last[3], the Manifest[4] and the Hidden[5], and He is All-Knowing of everything.

[2] Before Whom nothing existed; the foremost; the uppermost. [3] Eternal after Whom nothing remains. [4] High, nothing is above Him. [5] Nothing is nearer than Him by way of His knowledge; concealed from our physical senses.

He is the First[1623] and the Last,[1624] the Ascendant[1625] and the Intimate,[1626] and He is, of all things, Knowing.

[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.

3. He is the First (nothing is before Him) and the Last (nothing is after Him), the Most High (nothing is above Him) and the Most Near (nothing is nearer than Him). And He is the All-Knower of every thing.

He is the First and the Last, and the Outward and the Inward; and He is Knower of all things.