"his Word . . . tells us of him who surpasses all telling"

"The Father is beyond our sight and comprehension; but he is known by his Word, who tells us of him who surpasses all telling."

"Patrem quidem invisíbilem et indeterminabilem, quantum ad nos est, cognoscit suum ipsius Verbum, et cum sit inenarrabilis, ipse enarrat eum nobis:"

     St. Irenaeus, Adv. haer. IV.vi.3 (the numbering systems vary), as trans. Liturgy of the hours, Office of readings, Wednesday of Week 1 in Ordinary time.