King of the Nations: Jesus Christ
Both these Scriptures are about Jesus Christ:
“There is none like you, O Lord; You are great and great is your name in might. Who would not fear You, O King of the nations? Indeed it is Your due! For among all the wise men of the nations and in all their kingdoms, there is none like You.” (Jeremiah 10:6-7)
“Great and marvelous are your works O Lord God the Almighty; righteous and true are Your ways, King of the nations! Who will not fear, O Lord, and glorify they name? For you alone are holy; for all the nations will come and worship before You.” (Revelation 15:3-4)