You have gone from the argument that “it is simple” to “it is complex” in very quick succession. Which one is it?
John 5:31 the law requires 2 or 3 witnesses, 2 okay, 3 best. To the unbeliever the testimony of Jesus Christ concerning Himself, is insufficient.
John 8:14 but the reality is by witnessing about himself, he has 3 witnesses, which begs the question, when is 1 witness 3 and when is 3 witnesses 1?
Which agrees with the classic Trinitarian formulation, and validates the revelation made to Thomas which he then expressed explicitly “my Lord and my God” Jesus Christ.
It appears to me there is a pool, which you are resisting looking into, circumventing that pool, preferring the water to be darkness, a void, and therefore denying Thomas the right to his own personal observation of that pool and seeing a little less darkly than you are prepared to give him credit for.
Any particular reason you are doing this?