In the third month, to wit, of the sacred year, in which the feast of weeks or of pentecost fell; of which see Exodus 23:16 Deuteronomy 16:9. In the fifteenth year of the reign of Asa. Asa had peace but ten years, 2 Chronicles 14:1; after which probably there were some bickerings and skirmishes, which seem to have been composed; and after that Zerah comes against him, and is discomfited. Upon this great success many of the Israelites fall to him, and in his fifteenth year he calls this assembly.
Related Commentaries of 2 Chronicles 15:10
2 Chronicles 15:10
10 So they gathered themselves together at Jerusalem in the third month, in the fifteenth year of the reign of Asa.