Mark 10:38-40 NIV
“You don’t know what you are asking,” Jesus said. “Can you drink the cup I drink or be baptized with the baptism I am baptized with?”
“We can,” they answered.
Jesus said to them, “You will drink the cup I drink and be baptized with the baptism I am baptized with, but to sit at my right or left is not for me to grant. These places belong to those for whom they have been prepared.”
NIV: New International Version