Isaiah 65:1

Romans 10:20 NIV
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.”

Romans 9:24-26 NIV
even us, whom he also called, not only from the Jews but also from the Gentiles? As he says in Hosea: “I will call them ‘my people’ who are not my people; and I will call her ‘my loved one’ who is not my loved one,” and, “In the very place where it was said to them, ‘You are not my people,’ there they will be called ‘children of the living God.’”