Moses
Genesis 2:2ESV·traditional attribution

And on the seventh day God finished his work that he had done, and he rested on the seventh day from all his work that he had done.

John Calvin Reformed @genevareformer

2. And he rested on the seventh day The question may not improperly be put, what kind of rest this was. For it is certain that inasmuch as God sustains the world by his power, governs it by his providence, cherishes and even propagates all creatures, he is constantly at work.

Matthew Henry Presbyterian @wholebiblehenry

We have here, I. The settlement of the kingdom of nature, in God's resting from the work of creation, Gen 2:1, Gen 2:2. Here observe, 1. The creatures made both in heaven and earth are the hosts or armies of them, which denotes them to be numerous, but marshalled, disciplined, and under command. How great is the sum of them! And yet every one knows and keeps his place.

Commenting on Genesis 2:1-3

John Gill Reformed Baptist @doctorgill

And on the seventh day God ended his work, which he had made,.... Not that God wrought anything on the seventh day, or finished any part of his work on that day, because he could not then be said to rest from all his work, as be is afterwards twice said to do; and because of this seeming difficulty the Septuagint, Samaritan, and Syriac versions, read, "on the sixth day".