Repentance is the mother of life. It opens its door to us when we take flight from all things. The grace that we have lost after baptism by leading lax lives, repentance renews in us through the discernment of the understanding. By water and Spirit we have put on Christ, though we did not perceive His glory. Through repentance we enter into His delight by means of the discerning knowledge that dawns within us.
Homily 64.