Can someone lie and not know they are lying?

[HeavenlyOne]

Originally Posted by RevDWW

Can you lie so much that you wouldn't know the truth if it bit you own the nose?

Is it ever ok to use deceit? King David did to escape his enemy, by pretending he was crazy.

I know people who don't recall the truth, and I'm not sure if they just don't remember or if something is wrong in the brain department, but two people I've known all my life come to mind, and I'm puzzled by the things they recall that never happened, and they can't even tell the same story twice.

As for using deceit, it's always been my opinion that *intent* is what matters in telling an untruth.