Hilary of Poitiers
Catena Aurea · Johannesevangelium 15
Joh 15, Verses 1–3English original
I am the true vine, and my Father is the husbandman. Every branch in me that beareth not fruit he taketh away: and every branch that beareth fruit, he purgeth it, that it may bring forth more fruit. Now ye are clean through the word which I have spoken unto you.
(ix. de Trin) He rises in haste to perform the sacrament of His final passion in the flesh, (such is His desire to fulfil His Father’s commandment:) and therefore takes occasion to unfold the mystery of His assumption of His flesh, whereby He supports us, as the vine doth its branches: I am the true vine.