Charles Spurgeon Commentary Luke 3:12-13

"And there came also publicans to be baptized, and they said unto him, Teacher, what must we do? And he said unto them, Extort no more than that which is appointed you." — Luke 3:12-13 (ASV)

They were accustomed to gather the taxes unfairly, and to increase the rates by oppressing the people, getting, perhaps, twice or even ten times more out of them than they could legally claim.

John speaks to the point, does he not?