They said to Him, "We are able." So Jesus said to them, "You will indeed drink the cup that I drink, and with the baptism I am baptized with you will be baptized;
Mark 10:39
Surrounding context
10:38 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?"
10:39 They said to Him, "We are able." So Jesus said to them, "You will indeed drink the cup that I drink, and with the baptism I am baptized with you will be baptized;
10:40 but to sit on My right hand and on My left is not Mine to give, but it is for those for whom it is prepared."