. . . even the Spirit of truth, whom the world cannot receive, because it neither sees him nor knows him; you know him, for he dwells with you, and will be in you. John 14:17
Truth is an illusive thing in the post modern world. Everyone is left to decide what to believe on their own. Even our science has become political rather than observed phenomena and experiments with repeatable results. They all create postulations, theories, that are not tested but rather expanded upon by using computer algorithms. No proofs are given. We all stand around in frustration and ask the same question Pilot asked as he passed judgement on Messiah, “What is truth?” The worldly cannot receive absolute truth. To them it is folly.
The Greek word aletheias pertains to a real or actual event, the existing state of things, literal truth, something that is not a mistake or misunderstood, factual.
The facts are that God became a man came to earth suffered, bleed, and died so that the relationship between God and humans could be restored to those who except that fact.