Romans 10:20

but Esaias is more express, and says, "I was found of them that sought me not; I was made manifest to them that asked not after me.

Romans 9:24-26

to such as we, whom he has called, both from among the Jews, and from among the Gentiles.

Ephesians 2:12-13

that at that time ye were without all knowledge of the Messiah, being aliens from the common-wealth of Israel, and strangers to the covenants of promise, having no hope, and living in the world without any true knowledge of God.

John 1:29

The next day John saw Jesus coming to him, and said, "behold the lamb of God, who taketh away the sin of the world."

Romans 9:30

What shall we hence conclude? that the Gentiles who sought not after justice, have obtained justice, even to that which is by faith:

1 Peter 2:10

of darkness into his marvellous light: you, who formerly were not a people, but are now the people of God, who had not obtained mercy,

Treasury of Scripture Knowledge

Summary

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.

General references

Bible References

I am sought

Romans 9:24
to such as we, whom he has called, both from among the Jews, and from among the Gentiles.
Romans 10:20
but Esaias is more express, and says, "I was found of them that sought me not; I was made manifest to them that asked not after me.
Ephesians 2:12
that at that time ye were without all knowledge of the Messiah, being aliens from the common-wealth of Israel, and strangers to the covenants of promise, having no hope, and living in the world without any true knowledge of God.

Unto

1 Peter 2:10
of darkness into his marvellous light: you, who formerly were not a people, but are now the people of God, who had not obtained mercy,

General references

Romans 9:16
so that this is a matter not dependent on him that wills or runs, but on God, who shews mercy.
Romans 15:21
as it is written, "they to whom he was not mentioned, shall see: and they that have not heard, shall understand."