The recurrence of the sabbatical number in the five annual days of holy convocation should be noticed.

These are the feasts of the Lord, even holy convocations,.... What follow besides the sabbath mentioned:

which ye shall proclaim in their seasons; the proper times of the year, the day or days, and month in which they are to be observed; these were to be proclaimed by the priests with the sound of trumpet, namely, what follow, for they are put together, which had been before for the most part singly delivered.

Leviticus 23:4 contains the special heading for the yearly feasts. בּמועדם at their appointed time.

These are the feasts of the LORD, even holy convocations, which ye shall proclaim in their {a} seasons.

(a) For the sabbath was kept every week, and these others were kept only once every year.

23:4 These are the feasts of the Lord - Or rather, the solemnities: (for the day of atonement was a fast:) and so the word is used, Isa 33:20, where Zion is called the city of our solemnities.

4. These are the feasts of the Lord, which ye shall proclaim in their seasons-Their observance took place in the parts of the year corresponding to our March, May, and September. Divine wisdom was manifested in fixing them at those periods; in winter, when the days were short and the roads broken up, a long journey was impracticable; while in summer the harvest and vintage gave busy employment in the fields. Besides, another reason for the choice of those seasons probably was to counteract the influence of Egyptian associations and habits. And God appointed more sacred festivals for the Israelites in the month of September than the people of Egypt had in honor of their idols. These institutions, however, were for the most part prospective, the observance being not binding on the Israelites during their wanderings in the wilderness, while the regular celebration was not to commence till their settlement in Canaan.

23:4-14 The feast of the Passover was to continue seven days; not idle days, spent in sport, as many that are called Christians spend their holy-days. Offerings were made to the Lord at his altar; and the people were taught to employ their time in prayer, and praise, and godly meditation. The sheaf of first-fruits was typical of the Lord Jesus, who is risen from the dead as the First-fruits of them that slept. Our Lord Jesus rose from the dead on the very day that the first-fruits were offered. We are taught by this law to honour the Lord with our substance, and with the first-fruits of all our increase, Pr 3:9. They were not to eat of their new corn, till God's part was offered to him out of it; and we must always begin with God: begin every day with him, begin every meal with him, begin every affair and business with him; seek first the kingdom of God.