I’m sure i’ve tossed this theory into a post on here before but with the new revelations that i won’t mention here to avoid spoilers i wanted to post it properly as a potential for one of the lies.
During your initial escape of the maw in the introduction to shadowlands, Anduin creates a barrier to allow everyone to escape, as he does this, he tells you a lie.
Perhaps not intentionally by him, but old god prophecies are never black and white, they tend to be half truths.
The lie he told you was, “The light is with me, even here”.
Why is this a lie?
Because despite the light “helping” him to allow us to escape, the light has also helped the Jailer in getting his target. Why is this important?
“The Light has made a pact with the enemy of all .”
The light “helped” Anduin here purely to deliver him directly to the Jailer. The light wasn’t with him in the sense of being with him in the way he thought, the light was present, but not with him (or standing with him if you’re not sure of context).
Then some other quotes to fuel it a bit.
“The golden one claims a vacant throne.”
“The crown of light will bring only darkness.”