He appointed also... set feasts. — Rather, And the king’s portion (i.e., the part he contributed) from his property was for the burnt offerings — viz., for the burnt offerings of the morning and the evening, and the burnt offerings on the Sabbath, and the new moons, the set feasts. The king gave the victims for the sacrifices prescribed in Numbers 28:29, out of his own revenues. See the account of his wealth (2 Chronicles 32:27-29). The “set feasts” were the three great festivals, &c, enumerated in Num. l.c.
2 Chronicles 31:3
3 He appointed also the king's portion of his substance for the burnt offerings, to wit, for the morning and evening burnt offerings, and the burnt offerings for the sabbaths, and for the new moons, and for the set feasts, as it is written in the law of the LORD.