Theophylact of Ohrid
Catena Aurea · Johannesevangelium 5
I receive not honour from men. But I know you, that ye have not the love of God in you. I am come in my Father’s name, and ye receive me not: if another shall come in his own name, him ye will receive. How can ye believe, which receive honour one of another, and seek not the honour that cometh from God only? Do not think that I will accuse you to the Father: there is one that accuseth you, even Moses, in whom ye trust. For had ye believed Moses, ye would have believed me: for he wrote of me. But if ye believe not his writings, how shall ye believe my words? But if ye believe not his writings, how shall ye believe My words.
As if He said, He has even written, and has left his books among you, as a constant memento to you, lest you forget His words. And since you believe not his writings, how can ye believe My unwritten words?