and whenever burnt offerings were presented to the LORD on the Sabbaths, at the New Moon feasts and at the appointed festivals. They were to serve before the LORD regularly in the proper number and in the way prescribed for them.
They assisted with the burnt offerings that were presented to the LORD on Sabbath days, at new moon celebrations, and at all the appointed festivals. The required number of Levites served in the LORD ’s presence at all times, following all the procedures they had been given.
And to offer all burnt sacrifices unto the Lord
This was the work of the priests to offer such sacrifices, and
not the Levites; but the meaning is, according to the Targum, and
so Kimchi, that these not only sung the praises of God morning
and evening, but at all times when burnt offerings were offered
to the Lord; besides, some of them helped the priests at such
times in slaying the sacrifices, and bringing them to the altar:
and especially their service was requisite
in the sabbaths, in the new moons, and on the set feasts,
because, besides the daily sacrifices, there were additional
offerings at those times:
according to the order commanded unto them continually
before the Lord;
Numbers 28:1-29:40 ) .