The very thing that Israel could not fulfill (To be a light to the nations), Jesus was able to do and more.  He was not only a light to the nation’s, but a light unto the whole world.  Jesus was the fulfillment  of God’s promise to restore all of creation and build his Kingdom, one soul at a time.  This was a foreshadowing of the final event of a completed New creation for all of eternity.


Then Jesus again spoke to them, saying, “I am the Light of the world; he who follows Me will not walk in the darkness, but will have the Light of life.”
John 8:12 NASB

https://bible.com/bible/100/jhn.8.12.NASB