Mark 10:35-38

Then James and John, the sons of Zebedee, came to Him, saying, “Teacher, we want You to do for us whatever we ask.” And He said to them, “What do you want Me to do for you?” They said to Him, “Grant us that we may sit, one on Your right hand and the other on Your left, in Your glory.” But Jesus said to them, “You do not know what you ask. Are you able to drink the cup that I drink, and be baptized with the baptism that I am baptized with?”