Looking back now...
Those things he said, which were true and which were false?
What could be confirmed was that he had stolen the Tears of Time and intended to assassinate The Holy Maiden—no need to mention Freya, just this crime alone was enough to be sentenced to death. And this should be something easily verifiable.
That is to say, at least to an outsider... Aiwass confronting Cardinal Loki, with Loki being exposed for a fatal secret thus attempting to silence Aiwass by attacking him, leading to Aiwass killing Loki in legitimate self-defense, this logical chain was intact.
Among those words, what Aiwass found least believable was the story of the Holy Child of the Moon reaching "Perfect Being."
Others might not know, but Aiwass happened to know how a Perfect Human transformed—the path of humanity was Transcendence and the Path of Love, therefore a Perfect Being must reach the peak on these two paths, that is, the Sixth Power Level.