John 1:12

But to all who did receive him he gave power to become Children of God--to those who believe in his Name.

Romans 9:25-26

This, indeed, is what he says in the Book of Hosea-'I will call those my People who were not my People, and her my beloved who was not beloved.

1 Peter 2:10

Once you were 'not a people,' but now you are 'God's People'; once you 'had not found mercy,' but now you 'have found 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 to all who did receive him he gave power to become Children of God--to those who believe in his Name.
Romans 9:25
This, indeed, is what he says in the Book of Hosea-'I will call those my People who were not my People, and her my beloved who was not beloved.
1 Peter 2:10
Once you were 'not a people,' but now you are 'God's People'; once you 'had not found mercy,' but now you 'have found mercy.'