If the resurrection was a lie, they were the ones who invented it, and men do not let themselves be flayed, speared, clubbed, and crucified upside down for a story they know they wrote.
The resurrection witnesses were given every chance to recant and chose the club, the spear, the sword, and the cross.
One of these testimonies was tested in fire. The other was never tested at all
Then I was reminded of this powerful quote from an early church father.