13. And we indeed are sons of God, but sons
because the Son has made us such. For we were once sons of wrath,
but have been made sons of God through the Spirit of adoption, and have
earned that title by favour, not by right of birth. And since
everything that is made, before it was made, was not, so we, although
we were not sons, have been made what we are. For formerly we
were not sons: but after we have earned the name we are
such. Moreover, we have not been born, but made; not begotten,
but purchased. For God purchased a people for Himself, and by
this act begot them. But we never learn that God begot sons in
the strict sense of the term. For He does not say, “I have
begotten and brought up My sons,” but only, I have
begotten and brought up sons Is. i. 2 (LXX.)..