Matthew Poole and continuators on Genesis 1:3

3. And God said Let there be Light: And there was Light .

(i. e.) Commanded, not by such a word or speech as we use, which agreeth not with the spiritual nature of God; but either by an act of his powerful will, called the Word of his Power, Heb. 1. 3. Or, by his substantial Word, his Son, by whom he made the Worlds, Heb. 1. 2. Psal. 33. 6. who is called, The Word, partly, if not principally, for this reason, Iohn 1. 1, 2, 3. 10.

Which was some bright and lucid Body, peradventure like the fiery Cloud in the Wilderness, giving a small and imperfect Light, successively moving over the several parts of the Earth; and afterwards condensed, encreased, perfected, and gathered together in the Sun.

Marginal references: 2 Cor. 4. 6.