The Messiah would be revealed to a people who were not seeking Him.
OT Prophecy NT Fulfillment
Isaiah 65:1
I am sought of them that asked not for me; I am found of them that sought me not: I said, Behold me, behold me, unto a nation that was not called by my name.
Matthew 15:22–28
[22] And, behold, a woman of Canaan came out of the same coasts, and cried unto him, saying, Have mercy on me, O Lord, thou Son of David; my daughter is grievously vexed with a devil.
[23] But he answered her not a word. And his disciples came and besought him, saying, Send her away; for she crieth after us.
[24] But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
[25] Then came she and worshipped him, saying, Lord, help me.
[26] But he answered and said, It is not meet to take the children's bread, and to cast it to dogs.
[27] And she said, Truth, Lord: yet the dogs eat of the crumbs which fall from their masters' table.
[28] Then Jesus answered and said unto her, O woman, great is thy faith: be it unto thee even as thou wilt. And her daughter was made whole from that very hour.

Romans 10:18–20
[18] But I say, Have they not heard? Yes verily, their sound went into all the earth, and their words unto the ends of the world.
[19] But I say, Did not Israel know? First Moses saith, I will provoke you to jealousy by them that are no people, and by a foolish nation I will anger you.
[20] But Esaias is very bold, and saith, I was found of them that sought me not; I was made manifest unto them that asked not after me.
Tanakh – Neviim – Isaiah 65:1
I gave access to them that asked not for Me, I was at hand to them that sought Me not; I said: "Behold Me, behold Me," unto a nation that was not called by My name.
Hebrew OT – Isaiah 65:1
[65:1] נִדְרַשְׁתִּי לְלֹא־שָׁאֲלוּ
נִמְצֵאתִי לְלֹא בִקְשׁוּנִי
אָמַרְתִּי הִנְנִי הִנְנִי
אֶל־גוֹי לֹא־קֹרָא בִשְׁמִי