Mark 10:17-18

17 As Jesus was starting on his way again, a man ran up, knelt before him, and asked him, "Good Teacher, what must I do to receive eternal life?"
18 "Why do you call me good?" Jesus asked him. "No one is good except God alone.

Mark 10:17-18 In-Context

15 I assure you that whoever does not receive the Kingdom of God like a child will never enter it."
16 Then he took the children in his arms, placed his hands on each of them, and blessed them.
17 As Jesus was starting on his way again, a man ran up, knelt before him, and asked him, "Good Teacher, what must I do to receive eternal life?"
18 "Why do you call me good?" Jesus asked him. "No one is good except God alone.
19 You know the commandments: "Do not commit murder; do not commit adultery; do not steal; do not accuse anyone falsely; do not cheat; respect your father and your mother.' "
20 "Teacher," the man said, "ever since I was young, I have obeyed all these commandments."