I really don't have time to answer all of this--a simple timeline of events would do so--it's complicated. But to show how ineffective these arguments are;Let me be clear: I believe in Jesus' bodily resurrection. But I want evangelicals to be well informed about what the debate is all about.
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3 APPARENT INCONSISTENCIES ABOUT WHERE JESUS' FOLLOWERS ARE TOLD TO GO NEXT:
(7) The women at the tomb are told to send the disciples to Galilee, but say nothing to anyone (Mark 16:8--Mark's original ending).
(8) The women at the tomb go and share the instruction to go to Galilee for a resurrection appearance (Matthew 28:7-8).
(9) On the day the tomb is discovered empty, the disciples are instead told not to leave Jerusalem (Luke 24:49).
Concerning (7), you say, "Mark's original ending." Sorry, but no scholar says that so full of surety. There are four possible endings in the manuscripts, and scholars have their preferences, but virtually all believe that one ending is genuine. Even Metzger, is not sure, saying: "it appears that" Mark ended there (Bruce Metzger, A Textual Commentary on the Greek New Testament, 2nd ed., p. 105).
My friend Maurice Robinson, a well-known textual critic, has done extensive work on the longer ending, and believes it to be genuine. I recommend: David Alan Black, ed., Perspectives on the Ending of Mark. In this book Robinson and Black both take the view that the longer ending is the genuine one, and both are well known scholars.
Concerning (8), what's the problem? It agrees with your (7).
Concerning your (9), really? You actually think this is a problem? It refers to an event, the Ascension, 40 days later than the resurrection. Why would anyone think that contradicts Christ's instructions right after His resurrection to go to Galilee? In Galilee is where Peter's restoration occurred, among other things.
I believe your other points would be just as easily dismissed if you yourself would take time to do some serious study about the matter. I won't take time right now to do so.