Mark 11:30

11:30 John’s baptism – was it from heaven or from people? Answer me.”

Mark 1:4

1:4 In the wilderness John the baptizer began preaching a baptism of repentance for the forgiveness of sins.

Mark 10:38-39

10:38 But Jesus said to them, “You don’t know what you are asking! Are you able to drink the cup I drink or be baptized with the baptism I experience?” 10:39 They said to him, “We are able.” Then Jesus said to them, “You will drink the cup I drink, and you will be baptized with the baptism I experience,