Luke 3:10 - Ellicott's Commentary On The Whole Bible

And the people asked him... — The questions that follow are peculiar to St. Luke. They are interesting as showing that the work of the Baptist was not that of a mere preacher of repentance. Confession of sins followed naturally on the part of the penitents; that was followed, as naturally, by guidance for the conscience. St. Luke, as a physician of the soul, may well have delighted to place on record this example of true spiritual therapeutics.