And Isaiah boldly says: "I was found by those who did not seek Me; I revealed Myself to those who did not ask for Me."
Cross References
Isaiah 65:1"I revealed Myself to those who did not ask for Me; I was found by those who did not seek Me. To a nation that did not call My name, I said, 'Here I am! Here I am!'
Romans 9:30What then will we say? That the Gentiles, who did not pursue righteousness, have obtained it, a righteousness that is by faith;
Romans 9:31but Israel, who pursued a law of righteousness, has not attained it.
Romans 10:3Because they were ignorant of God's righteousness and sought to establish their own, they did not submit to God's righteousness.
 Treasury of Scripture
But Esaias is very bold, and said, I was found of them that sought me not; I was made manifest to them that asked not after me.
very bold.
Proverbs 28:1
 The wicked flee when no man pursueth: but the righteous are bold as a lion.
Isaiah 58:1
 Cry aloud, spare not, lift up thy voice like a trumpet, and shew my people their transgression, and the house of Jacob their sins.
Ephesians 6:19,20
 And for me, that utterance may be given unto me, that I may open my mouth boldly, to make known the mystery of the gospel, … 
I was found.
Romans 9:30
 What shall we say then? That the Gentiles, which followed not after righteousness, have attained to righteousness, even the righteousness which is of faith.
Isaiah 65:1,2
 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… 
I was made.
Isaiah 49:6
 And he said, It is a light thing that thou shouldest be my servant to raise up the tribes of Jacob, and to restore the preserved of Israel: I will also give thee for a light to the Gentiles, that thou mayest be my salvation unto the end of the earth.
Isaiah 52:15
 So shall he sprinkle many nations; the kings shall shut their mouths at him: for that which had not been told them shall they see; and that which they had not heard shall they consider.
Isaiah 55:4,5
 Behold, I have given him for a witness to the people, a leader and commander to the people…