Augustine of Hippo
Catena Aurea · Johannesevangelium 14
Thomas saith unto him, Lord, we know not whither thou goest; and how can we know the way? Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me. If ye had known me, ye should have known My Father also; and from henceforth ye know him, and have seen him.
(de Verb. Dom. s. liv) As if He said, I am the way, whereby thou wouldest go; I am the truth, whereto thou wouldest go; I am the life, in which thou wouldest abide. The truth and the life every one understands (capit); but not every one hath found the way. Even the philosophers of the world have seen that God is the life eternal, the truth which is the end of all knowledge. And the Word of God, which is truth and life with the Father, by taking upon Him human nature, is made the way. Walk by the Man, and thou wilt arrive at God. For it is better to limp on the right way, than to walk ever so stoutly by the wrong.