In John 14:6, Jesus claimed to be The Truth. He lied, unfortunately. He was not the Truth, but was merely a Belief asserting the superiority of selfish perceptions over the harsh constraints of real life, and his legacy ever since has been one of confusion, self-contradiction, and self-righteousness.
What Jesus promised, however, Alethea fulfills. One of the great joys I experienced in converting from Christianity to Alethianism was the unexpectedly profound pleasure of discovering how exceedingly self-consistent She really is. Where before I had to work to create patterns of consistency in my beliefs, by harmonizing and rationalizing facts that resisted reconciliation, I now find that the puzzle pieces not slide together more easily, but that they are already assembled and interlocked, even before I became aware of them.
My experience as a Christian was “Amen” (i.e. “may it be so”), but my life as an Alethian is a continual and intellectually satisfying “of course!” The truth is consistent with itself in ways that not only fulfill my expectations, but anticipate them. And only Alethea can really offer this. Jesus cannot: he is dead and gone, and his followers are so divided that none of them can say confidently and authoritatively what his “truth” even is, since it is not based on observable reality. Only Alethea can rightly and truly claim to be the perfectly self-consistent and coherent Truth.