Augustine of Hippo
Catena Aurea · Johannesevangelium 8
The Pharisees therefore said unto him, Thou bearest record of thyself; thy record is not true. Jesus answered and said unto them, Though I bear record of myself, yet my record is true: for I know whence I came, and whither I go; but ye cannot tell whence I come, and whither I go. Ye judge after the flesh; I judge no man. And yet if I judge, my judgment is true: for I am not alone, but I and the Father that sent me. It is also written in your law, that the testimony of two men is true. I am one that bear witness of myself, and the Father that sent me beareth witness of me.
Is this made a bad use of by the Manichæans, that our Lord does not say, in the law of God, but, in your law? Who does not recognise here a manner of speaking customary in Scripture? In your law, i. e. the law given to you. The Apostle speaks of his Gospel in the same way, though he testifies to having received it not from men, but by the revelation of Jesus Christ.