Bede the Venerable
Catena Aurea · Johannesevangelium 14
If ye love me, keep my commandments. And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever; Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you.
Note too, that when He calls the Holy Spirit the Spirit of truth, He shews that the Holy Spirit is His Spirit: then when He says He is given by the Father, He declares Him to be the Spirit of the Father also. Thus the Holy Ghost proceeds both from the Father, and from the Son.