In Homily VIII of Romans (on Romans 4), John Chrysostom wrote that:
. . . for he who is a believer
glorieth again, not only because he loveth God in sincerity, but also because
he hath enjoyed great honor and love from him. For as he shows his love to Him
by having great thoughts about Him, (for this is a proof of love), so doth God
also love him, though deserving to suffer for countless sins, not in freeing
him from punishment only, but even by making him righteous. He then hath
whereof to glory, as having been counted worthy of mighty love.
In PG 60:455, the phrase "but even by making him
righteous" is ἀλλὰ καὶ δίκαιον ἐργασάμενος:
Further Reading:
Refuting Christina Darlington on the Nature of "Justification"