Ezekiel 16:61

Then thou shalt remember thy ways, and be ashamed, when thou shalt receive (n) thy sisters, thy elder and thy younger: and I will give them to thee for daughters, but not (o) by thy covenant.

(n) By which he shows that among the most wicked, he always had some seed of his Church, which he would cause to bear fruit in due time: and here he declares how he will call the Gentiles.

(o) But of my free mercy.