Except for Judas Iscariot, who committed suicide, the remaining Apostles were martyred for their preaching in the name of Jesus. Each on suffered an excruciating torture and untimely death. Yet, not one of them denied their faith.
St. Andrew was crucified on an X-shaped cross where he preached to his tormentors for two days before dying. St. John was boiled in oil. St. Peter asked to be crucified lest he be killed in the same manned as Christ. St. Bartholomew was flayed in Armenia. These men embraced their martyrdom as badges of honor.
Non-believers in Christianity have often suggested that Jesus either never existed or whole parts of His life story were concocted by the Apostles after His death. These accusations suggest that the Apostles knowingly lied and spread lies.
However, since nearly all the Apostles died, willingly, for their claims about Jesus, one would have to assume that these men did not knowingly lie. What otherwise sane individual would be tortured and die for a claim he/she knew to be untrue. Even Galileo recanted the truth when threatened with torture. On Galileo’s behalf, it is very sane to lie about your beliefs to save your own skin (even Peter denied Christ on Good Friday).
However, none of the Apostles chose life over their beliefs in the end. Therefore, if one believes the martyrdom stories, one must conclude that the Apostles were either true believers or lunatics, for only a lunatic would embrace death for something known to be false.
There is no indication, whatsoever, that the Apostles were lunatics. The New Testament portrays them as flawed (just like any other human), but filled with incredible inner strength after the Resurrection. These men wrote some of the wisest, most beautiful words written. They spoke charismatically and won many new converts. They were seen as threats to the establishment, as evidenced by their martyrdom.
Most importantly, these men were true martyrs unlike the 9/11 terrorists. The terrorists chose the when, how, and where of there “martyrdom” and inflicted pain and torment upon thousands. The Christian Martyrs had martyrdom thrust upon them (although they readily accepted the call) and were inflicted with terrible pain.
Therefore, one must conclude based on the evidence and lack of contradictory evidence that the fist Christians were sane and ethical men who so fervently believed in the Messiah-ship of Jesus, their compatriot, that they accepted excruciating deaths rather than deny Christ as their Savior.