Leviticus 23:37

These [are] the feasts of the Lord
Besides the sabbath, as Gersom observes; even the passover, the seven days of unleavened bread the day of Pentecost, the day of blowing the trumpets, the day of atonement, and the seven days of the feast of tabernacles;

which ye shall proclaim [to be] holy convocations:
as they had been directed, ( Leviticus 23:2 ) ;

to offer an offering made by fire unto the Lord;
which is explained by

a burnt offering, and a meat offering,
which went along with it;

a sacrifice,
which the Targums of Onkelos and Jonathan call the sacrifice of holy things; according to Gersom it was the sacrifice of the peace offerings; but rather it seems to be the sacrifice of the sin offering, which was ordered along with the rest in all those feasts:

and drink offerings;
which also accompanied the meat offerings:

everything upon his day;
there being different sacrifices on one day than on another, everyone was to be offered peculiar to the day as was ordered; of which see ( Numbers 28:29 ) .