And the scribes and the Pharisees began to reason, saying, "Who is this who speaks blasphemies? Who can forgive sins but God alone?"
Luke 5:21
Surrounding context
5:20 When He saw their faith, He said to him, "Man, your sins are forgiven you."
5:21 And the scribes and the Pharisees began to reason, saying, "Who is this who speaks blasphemies? Who can forgive sins but God alone?"
5:22 But when Jesus perceived their thoughts, He answered and said to them, "Why are you reasoning in your hearts?