Moses
Genesis 1:10ESV·traditional attribution

God called the dry land Earth, and the waters that were gathered together he called Seas. And God saw that it was good.

Matthew Henry Presbyterian @wholebiblehenry

The third day's work is related in these verses - the forming of the sea and the dry land, and the making of the earth fruitful. Hitherto the power of the Creator had been exerted and employed about the upper part of the visible word; the light of heaven was kindled, and the firmament of heaven fixed: but now he descends to this lower world...

Commenting on Genesis 1:9-13

John Gill Reformed Baptist @doctorgill

And God called the dry land earth,.... The whole chaos, that was a turbid fluid, a mixture of earth and water, a rude unformed mass of matter, was called earth before; but now that part of the terraqueous globe, which was separated from the waters, and they from it, is called "earth": which has its name in the Arabic language from its being low and...

Jamieson-Fausset-Brown Reformed @jfbcommentary

THIRD DAY. (Gen 1:9-13) let the waters under the heaven be gathered together unto one place--The world was to be rendered a terraqueous globe, and this was effected by a volcanic convulsion on its surface, the upheaving of some parts, the sinking of others, and the formation of vast hollows, into which the waters impetuously rushed, as is graphically described (Psa 104:6-9) [HITCHCOCK].

Commenting on Genesis 1:9-13