Mark 2:8

But immediately, when Jesus perceived in His spirit that they reasoned thus within themselves, He said to them, "Why do you reason about these things in your hearts?

Surrounding context

2:7 "Why does this Man speak blasphemies like this? Who can forgive sins but God alone?"

2:8 But immediately, when Jesus perceived in His spirit that they reasoned thus within themselves, He said to them, "Why do you reason about these things in your hearts?

2:9 Which is easier, to say to the paralytic, "Your sins are forgiven you,' or to say, "Arise, take up your bed and walk'?

Translation and sources