Luke 3:18 - Coke's Commentary on the Holy Bible

Preached he— Ευηγγελιζετο, He evangelized, or preached as an evangelist. See Luke 2:10. It is observable, that in the parallel place; Matthew 3:1 the word κηρυσσων is used, which implies the notice given by Christ's herald, who is sent before to make preparation for his prince, and to announce his approach. Dr. Doddridge renders and paraphrases the present verse thus: and offering many other exhortations to them, to the same effect, he published to the people these glad tidings of the Messiah's approach, and endeavoured to prepare them to receive him in a proper manner. Dr. Heylin renders it, And with many other exhortations, he preached the gospel to the people: for, says he, the doctrine of a second baptism, or purification, &c. is purely evangelical.