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.
(Tract. xxxvi. 10) There is much difficulty, and a great mystery seems to be contained, in God’s words, In the mouth of two or three witnesses, let every word be established. (Deut. 10) It is possible that two may speak false. The chaste Susannah was arraigned by two false witnesses: the whole people spake against Christ falsely. How then must we understand the word, By the mouth of two or three witnesses shall every word be established: except as an intimation of the mystery of the Trinity, in which is perpetual stability of truth? Receive then our testimony, lest ye feel our judgment. I delay My judgment: I delay not My testimony: I am one that beareth witnes of Myself, and the Father that sent Me beareth witness of Me.