Actually all the stuff about Jesus' was written second hand. And all the bible stories aren't written by the people that are in them. Adam didn't write genesis, moses didn't transcribe the flood story, etc. So no its not firsthand witness accounts. In fact, none of it is. And lots of stuff in the bible is clearly false, and has been proven false. Just because the religious community rejects that doesn't mean anything. Revelation 6:13 And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind. To even write that means you don't understand what stars are.