John 8:54
“If I honor Myself, My honor is nothing.”
2. What say the heretics here? That He heard the question, “Are you greater than our father Abraham?” and dared not to say to them, “Yea, I am greater,” but did so in a covert manner. What then? Is His honor “nothing”? With respect to them it is nothing. And as He said, “My witness is not true”, with reference to the opinion they would form of it, so also does He speak here.
“There is One that honors Me.”
And wherefore said He not, “The Father that sent Me,” as He did before, but,
“Of whom you say that He is your God.”
Source: Homilies on the Gospel of John (New Advent)