The seventh day had been consecrated as the Sabbath of Yahweh, figuring His own rest; it was the acknowledged sign of the covenant between God and His people. See the Exodus 20:1-11 notes. As such it properly held its place at the head of the days of holy convocation.

The seventh day is the Sabbath - This, because the first and greatest solemnity, is first mentioned. He who kept not this, in the most religious manner, was not capable of keeping any of the others. The religious observance of the Sabbath stands at the very threshold of all religion. See Clarke's note on Genesis 2:3.

Six days shall work be done,.... Or may be done by men, any sort of lawful work and honest labour, for the sustenance of themselves and families:

but the seventh day is the sabbath of rest; from all bodily labour and work of any kind; typical of rest by Christ and in him:

an holy convocation; when the people were called to holy exercises, to pray and praise, and hear the word, and offer sacrifice:

ye shall do no work therein; not any at all, see Exodus 31:15,

it is the sabbath of the Lord in all your dwellings: other feasts were kept in the sanctuary, in the tabernacle or temple, or where they were; but this was not only observed there and in their synagogues, but in their private houses, or wherever they were, whether, travelling by sea or land; and so the Targum of Jonathan and Aben Ezra interpret it.

At the head of these moadim stood the Sabbath, as the day which God had already sanctified as a day of rest for His people, by His own rest on the seventh creation-day (Genesis 2:3, cf. Exodus 20:8-11). On שׁבּתון שׁבּת, see at Exodus 31:15 and Exodus 16:33. As a weekly returning day of rest, the observance of which had its foundation in the creative work of God, the Sabbath was distinguished from the yearly feasts, in which Israel commemorated the facts connected with its elevation into a people of God, and which were generally called "feasts of Jehovah" in the stricter sense, and as such were distinguished from the Sabbath (Leviticus 23:37, Leviticus 23:38; Isaiah 1:13-14; 1 Chronicles 23:31; 2 Chronicles 31:3; Nehemiah 10:34). This distinction is pointed out in the heading, "these are the feasts of Jehovah" (Leviticus 23:4).

(Note: Partly on account of his repetition, and partly because of the supposed discrepancy observable in the fact, that holy meetings are not prescribed for the Sabbath in the list of festal sacrifices in Numbers 28 and 29, Hupfield and Knobel maintain that the words of Leviticus 23:2 and Leviticus 23:3, from יהוה to מושׁבתיכם, notwithstanding their Elohistic expression, were not written by the Elohist, but are an interpolation of the later editor. The repetition of the heading, however, cannot prove anything at all with the constant repetitions that occur in the so-called Elohistic groundwork, especially as it can be fully explained by the reason mentioned in the text. And the pretended discrepancy rests upon the perfectly arbitrary assumption, that Numbers 28 and 29 contain a complete codex of all the laws relating to all the feasts. How totally this assumption is at variance with the calendar of feasts, is clear enough from the fact, that no rule is laid down there for the observance of the Sabbath, with the exception of the sacrifices to be offered upon it, and that even rest from labour is not commanded. Moreover Knobel is wrong in identifying the "holy convocation" with a journey to the sanctuary, whereas appearance at the tabernacle to hold the holy convocations (for worship) was not regarded as necessary either in the law itself or according to the later orthodox custom, but, on the contrary, holy meetings for edification were held on the Sabbath in every place in the land, and it was out of this that the synagogues arose.)

In Numbers 28:11 the feast of new moon follows the Sabbath; but this is passed over here, because the new moon was not to be observed either with sabbatical rest or a holy meeting.

Six days shall work be done: but the seventh day is the sabbath of rest, an holy convocation; ye shall do no work therein: it is the sabbath of the LORD in all your dwellings.

23:3 Ye shall do no work therein - So it runs in the general for the sabbath day, and for the day of expiation, Lev 23:28, excluding all works about earthly employments whether of profit or of pleasure; but upon other feast days he forbids only servile works, as Lev 23:7,21,36, for surely this manifest difference in the expressions used by the wife God must needs imply a difference in the things. In all your dwellings - Other feasts, were to be kept before the Lord in Jerusalem only, whither all the males were to come for that end; but the sabbath was to be kept in all places, both in synagogues, and in their private houses.

3. Six days shall work be done: but the seventh day is the sabbath of rest-(See on [47]Ex 20:8). The Sabbath has the precedence given to it, and it was to be "a holy convocation," observed by families "in their dwellings"; where practicable, by the people repairing to the door of the tabernacle; at later periods, by meeting in the schools of the prophets, and in synagogues.

23:1-3 In this chapter we have the institution of holy times; many of which have been mentioned before. Though the yearly feasts were made more remarkable by general attendance at the sanctuary, yet these must not be observed more than the sabbath. On that day they must withdraw from all business of the world. It is a sabbath of rest, typifying spiritual rest from sin, and rest in God. God's sabbaths are to be religiously observed in every private house, by every family apart, as well as by families together, in holy assemblies. The sabbath of the Lord in our dwellings will be their beauty, strength, and safety; it will sanctify, build up, and glorify them.