So, verses 9 and following are a little odd. Your Bible likely has “some earlier manuscripts do not have…” and this made you wonder what’s up with the Bible. Here’s the thing. Scribes over the years made some minor interesting decisions.

Sometimes they made a mistake – think “n” and “r” when handwritten could be close.

Sometimes they added comments that got brought into the text over time – a passage might say “Jesus” and the comment “Christ, our savior” was added. Later writings may just have “Jesus Christ, our savior” which is true, just not in the original text.

Or at times scribes made decisions to “help” the original – like the end of Mark. Here’s my take: a well-meaning school of scribes felt like the ending was too abrupt and left off the best part – the tomb was empty because Jesus was alive! So, they added the ending, using the other Gospels as sources. The problem is, the writing is different and feels like it is. Further, the material is out there some times (ie. not every believer is handling snakes). So, it was likely added and made to feel like Mark wrote it – terse and lacking any detail. This doesn’t mean God’s Word is faulty or can’t be trusted.

Some of what is written is from Luke (road to Emmaus). Some from Pauls ministry perhaps (bit by snakes and not dying).

We have the closest thing to the original that we’ve ever had. It all lines up. Trust textual critics and their painstaking work!