third moneth] Likely at the Feast of Weeks or Pentecost.
fifteenth year] This may seeme a second and more through Reformation, four or five years after his victory against Zerah. Or else that victory must be reduced to this fifteenth year of Asa. And till that time they had had rest, and no warre; which fifteenth of Asa was the thirty five in his reigne, i. e. since the Kingdome of Judah was divided from the Kingdome of Israel, ver. 19. viz. 17. of Rehoboam; three of Abijah, and these fifteen of Asa.