The Messiah would be the "First and the Last".
OT Prophecy NT Fulfillment
Isaiah 44:6
[6] Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and beside me there is no God.
Revelation 1:17–18
[17] And when I saw him, I fell at his feet as dead. And he laid his right hand upon me, saying unto me, Fear not; I am the first and the last:
[18] I am he that liveth, and was dead; and, behold, I am alive for evermore, Amen; and have the keys of hell and of death.
Tanakh – Neviim – Isaiah 44:6
[44:6] Thus saith HaShem, the King of Israel, and his Redeemer HaShem of hosts: I am the first, and I am the last, and beside Me there is no G-d.
Hebrew OT – Isaiah 44:6
[44:6] כֹּה אָמַר יְהוָה מֶלֶךְ יִשְׂרָאֵל
וְגֹאֲלוֹ יְהוָה צְבָאוֹת
אֲנִי רִאשׁוֹן וַאֲנִי אַחֲרוֹן
וּמִבַּלְעָדַי אֵין אֱלֹהִים