In Leviticus chapter twenty-three, verse two, the Lord speaks to Moses to tell the children of Israel about the feasts of the Lord. This chapter presents a list: of blessed days of celebration and worship. The days symbolize redemption and consecration, demonstrating that Israel and all they possessed belonged to God. There were two cycles of these feasts: a weekly cycle and an annual cycle. All were feasts except for the day of atonement, which was the one fast day required by the law. These cycles helped to be their worship to the events in their daily lives, for they were not to separate worship from life.
The feast is appointed and ordered by God and to be kept to honor his name. These are the names for the particular holy times and seasons after being selected. They are “feasts,” though one of them, the day of atonement, was, strictly speaking, a fast. Yet being a cessation from all work, and opposed to working days, days of labor, and business, it comprehends this general title: nor is it unusual with other nations to call a fast a feast. For there are certain times of the week and month fixed for them, and when the people in bodies assembled and solemnly worshipped the Lord called “convocations.”
People are summoned together with the sound of a trumpet to set aside from other days and set apart for religious services. Today Christians or believers will set time or a day to worship the Lord and honor Him for all He has done. Specifically, the righteous will properly worship God on the Sabbath day when members assemble and have a mass or church service. Some believers will go to church on the Sabbath day and worship God and have their feast anytime during the week when desired.