HAVE GOSPEL WILL TRAVEL
...UNTO YOU THEREFORE, MEN AND BRETHREN, THAT THROUGH THIS MAN IS PREACHED UNTO YOU THE FORGIVENESS OF SINS:
BY HIM ALL THAT BELIEVE ARE JUSTIFIED FROM ALL THINGS, FROM WHICH YE COULD NOT BE JUSTIFIED BY THE LAW OF MOSES
WHEN JOHN HAD FIRST PREACHED BEFORE HIS COMING THE BAPTISM OF REPENTANCE TO ALL THE PEOPLE OF ISRAEL.
....WHO, SPEAKING TO THEM, PERSUADED THEM TO CONTINUE IN THE GRACE OF GOD. [VS. 43]
BECAUSE THE AUDIANCE WERE MOSTLY JEWS WHO THOUGHT SALVATION CAME THROUGH THE KEEPING OF THE LAWS OF MOSES.