. . . Because quoting the claims of the “new testament” proves everything![/sarcasm]
Because the New Testament was written by the eyewitnesses of the events, the teachings of Jesus, the witness of the Prophets of the Lord, the witnesses that SAW the risen Christ, the witnesses that were empowered by the indwelling Holy Spirit, the witnesses that wrote as they were moved by the Holy Spirit to write of the things they saw with their own eyes and experienced in their own lives and, if the events had not happened, would have been disputed by others if they were all invented fantasies. The witnesses that were willing to die horrible martyrdom for the undeniable truth. People die for lies - but NO ONE dies for what they KNOW is a lie.
Don't let your cynicism and sarcasm keep you from knowing that same truth.