John Dummelow's Commentary on the Bible - Luke 3:1-38
John’s Ministry. Baptism and Genealogy of Jesus1-14.. Preliminary Ministry of the Baptist (Matthew 3:1; Mark 1:1). See on Mt.1. In the fifteenth year] If the years of Tiberius are reckoned from the death of Augustus, who died 14 a.d., the date is 28, 29 a.d. Most authorities, however, suppose that the years of Tiberius are here reckoned from 11 a.d., when he was made the colleague of Augustus in the empire, with equal authority over all the provinces and armies. This gives the date 25, 26 a.d.... read more
Expository Notes of Dr. Thomas Constable - Luke 3:12-13
John counseled sincere tax collectors to refrain from extorting more money than they had a right to receive (cf. Luke 5:27-32). He advocated honesty and freedom from greed. He did not suggest overthrowing a system that allowed for abuses but prescribed personal morality that would eliminate the abuses. read more