John 1:12

But as many as received him, to them he gave the privilege of be coming the children of God, even to those who believe on his name;

Romans 9:25-26

As he says also in Hosea: I will call that my people which is not my people, and her beloved, who was not beloved.

1 Peter 2:10

who formerly were not a people, but now are the people of God; who had not received mercy, but now have received mercy.

Treasury of Scripture Knowledge

Summary

For thou hast confirmed to thyself thy people Israel to be a people unto thee for ever: and thou, LORD, art become their God.

Bible References

Art become

John 1:12
But as many as received him, to them he gave the privilege of be coming the children of God, even to those who believe on his name;
Romans 9:25
As he says also in Hosea: I will call that my people which is not my people, and her beloved, who was not beloved.
1 Peter 2:10
who formerly were not a people, but now are the people of God; who had not received mercy, but now have received mercy.