19th after pentecost year b - mark

Mark 9:38-50
³⁸John said to Jesus,
     “Teacher, we saw someone casting out demons in your name,
     and we tried to stop them,
          because they were not following us.”
³⁹But Jesus said,
     “Do not stop them;
          for no one who does a deed of power in my name
               will be able soon afterward to speak evil of me.
          ⁴⁰Whoever is not against us is for us.
     ⁴¹For truly I tell you,
          whoever gives you a cup of water to drink
               because you bear the name of Christ
                    will by no means lose the reward.

⁴²“If any of you put a stumbling block
     before one of these little ones who believe in me,
          it would be better for you
               if a great millstone were hung around your neck
               and you were thrown into the sea.
⁴³If your hand causes you to stumble,
     cut it off;
          it is better for you to enter life maimed
               than to have two hands
               and to go to hell,
                    to the unquenchable fire.  
⁴⁵And if your foot causes you to stumble,
     cut it off;
          it is better for you to enter life lame
               than to have two feet
               and to be thrown into hell.  
⁴⁷And if your eye causes you to stumble,
     tear it out;
          it is better for you to enter the dominion of God with one eye
               than to have two eyes
               and to be thrown into hell,
                    ⁴⁸where their worm never dies,
                    and the fire is never quenched.

⁴⁹“For everyone will be salted with fire.
     ⁵⁰Salt is good;
          but if salt has lost its saltiness,
               how can you season it?
          Have salt in yourselves,
               and be at peace with one another.”

Queeries for the text:
Who else have disciples tried to stop from doing ministry in Jesus' name?
What is the reward?
What are today's stumbling blocks?
Who is placing the stumbling blocks?
How are Jesus' hyperboles harmful to others?
What does this have to do with what's going on today?
What hell is Jesus talking about?
Is being at peace with ourselves a prerequisite to being at peace with one another?
Does salt only work when it's angry?
If bodies are mostly water, what's our salt content?

What are your queeries?