Peter, James and Paul.
If Peter was who they say he was, and James was who they say he was, and Paul was who they say he was …
why would the character, Jesus of Nazareth have commanded/allowed a likely epileptic through a supposed vision to usurp his Number One Go To Guy, Peter, and his supposed flesh and blood brother and successor, James the Just to spread his supposed word thus leaving the Jerusalem Church to flounder and eventually, after the war, die out?
The oft quoted line from CS Lewis: Liar, Lunatic or Lord we know cleverly omits the word Legend.
However, with Paul, whoever he was, the title Liar seems a very suitable epithet indeed.