Calvin on Gen. 2:1-3 [interesting admission on Vs.3]

Verse 1. Thus the heavens and the earth were finished.
"Moses summarily repeats that in six days the fabric of the heaven
and the earth was completed. ....God, therefore, did not cease from the work of the creation of the world till He had completed it in every part, so that nothing should be wanting to its suitable abundance."

Verse 2. And He rested on the seventh day.
"The question may not improperly be put, what kind of rest this was. The solution of the difficulty is well known, that God ceased from all His work, when he desisted from the creation of new kinds of things. On the whole, this language is intended merely to express the perfection of the fabric of the world; and therefore we must not infer that God so ceased from his works as to desert them, since they only flourish and subsist in Him.
....the Architect, the bountiful Father of a family, who has omitted nothing essential to the perfection of His edifice."

Verse 3. And God blessed the seventh day .
"Moses, by adding the word sanctified, ....thus all ambiguity is
removed, ...For sdq (kadesh,) with the Hebrews, is to separate from

the common number.
God therefore sanctifies the seventh day, when He renders it illustrious, that by a special law it may be distinguished from the rest.
---Whence......six days were employed in the formation of the world; not that God, to whom one moment is as a thousand years, had need of this succession of time, but that He might engage us in the consideration of his works.
---He had the same end in view in the appointment of His own rest, for he set apart a day selected out of the remainder for this special use.
-*-*-Wherefore, that benediction is nothing else than a solemn consecration, by which God claims for Himself the meditations and employments of men on the seventh day."
Calvin