Mark 10:39

35 Then James and John, the sons of Zebedee, came to Jesus and declared, “Teacher, we want You to do for us whatever we ask.”

36 “What do you want Me to do for you?” He inquired.

37 They answered, “Grant that one of us may sit at Your right hand and the other at Your left in Your glory.”

38 “You do not know what you are asking,” Jesus replied. “Can you drink the cup I will drink, or be baptized with the baptism I will undergo?”

39 “We can,” the brothers answered. “You will drink the cup that I drink,” Jesus said, “and you will be baptized with the baptism that I undergo.

40 But to sit at My right or left is not Mine to grant. These seats belong to those for whom they have been prepared.”

41 When the ten heard about this, they became indignant with James and John.

42 So Jesus called them together and said, “You know that those regarded as rulers of the Gentiles lord it over them, and their superiors exercise authority over them.

43 But it shall not be this way among you. Instead, whoever wants to become great among you must be your servant,

Read all of Mark 10