Ellicott's Commentary for English Readers - Genesis 1:14
(14) Let there be lights (luminaries) in the firmament (or expanse) of the heaven.—In Hebrew the word for light is ôr, and for luminary, ma-ôr, a light-bearer. The light was created on the first day, and its concentration into great centres must at once have commenced; but the great luminaries did not appear in the open sky until the fourth day. With this begins the second triad of the creative days. Up to this time there had been arrangement chiefly; heat and water had had their periods of... read more
Ellicott's Commentary for English Readers - Genesis 1:11
(11) Let the earth bring forth grass.—This is the second creative act. The first was the calling of matter into existence, which, by the operation of mechanical and chemical laws, imposed upon it by the Creator, was arranged and digested into a cosmos, that is, an orderly and harmonious whole. These laws are now and ever in perpetual activity, but no secondary or derived agency can either add one atom to the world-mass or diminish aught from it. The second creative act was the introduction of... read more