Might I suggest that this viewpoint is a subtle way of denying the absoluteness and singleness of truth. Not merely of logical propositions (which can be easily confirmed) but of Truth that sets a man free (John 8:32). This Truth is not determined by the senses (only) but is hidden from the wise and prudent and revealed unto babes (Matthew 11:25). The foundational nature of this Truth is that the man to whom it is revealed despairs of himself because that Truth is against him - is against every man. The Truth is objective and speaks of itself - not of ourselves. It is real, it is single and it is not something that we can receive unless God reveals it to us (John 3:27). But again, it is not something we can or even will receive because it is, by its very nature, not of us - it is of God.
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.
John 5:43
Man, by his very (fallen) nature, wants to justify and exalt himself. If the message exalts him or his sense of self, he will receive it and the one who sent it. But the very heart of Jesus' message was one that would not be received - in part because He didn't come touting Himself. And that is the very nature of the message. For even the Spirit of Truth that He promised had that same witness :
Jesus answered them, and said, My doctrine is not mine, but his that sent me.
If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself.
He that speaketh of himself seeketh his own glory: but he that seeketh his glory that sent him, the same is true, and no unrighteousness is in him.
John 7:16-18
I have yet many things to say unto you, but ye cannot bear them now.
Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.
He shall glorify me: for he shall receive of mine, and shall shew it unto you.
All things that the Father hath are mine: therefore said I, that he shall take of mine, and shall shew it unto you.
John 16:12-15
Notice that there is never a hint of Jesus pointing to Himself - rather it is the Father and the Spirit validating Him. It isn't His own Divinity He points to, but the testimony of the Father and of the Spirit to what He is saying. If Jesus bore that message, then the Truth - when it is given to us - will be utterly not of us, nor will it exalt us. It will exalt Christ. And it will be separate from us. Men will not glorify us, but God (for we are not the same thing).
I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me.
Galatians 2:20
The Truth requires that it not be of us, nor exalt us in any way. If it does, we have not been crucified with Christ and we still live. If Christ was in union with the Father in such an intimate way as we see in His prayer of John 17 - and He prayed that all those in Him would be one even as He was one with the Father - then the distinction He makes between Himself and the Father should show us that the Truth will not be something we can muddle with our own thoughts or ideas. In short, the Truth is undeniable and undeniably not of "me".
The bottom line is that if there is any doubt or confusion or thought that there might be another way of looking at things to find the Truth, then that is strong indication that one's own thoughts and ideas are taking the place of Christ and His doctrine. If the supposed truth in any way exalts me, it is not Truth.
