John Gills Exposition of the Bible Commentary - Genesis 1:15
And let them be for lights in the firmament of the heaven ,.... To continue there as luminous bodies; as enlighteners, as the word signifies, causing light, or as being the instruments of conveying it, particularly to the earth, as follows: to give light upon the earth ; and the inhabitants of it, when formed: and it was so : these lights were formed and placed in the firmament of the heaven for such uses, and served such purposes as God willed and ordered they should. read more
Matthew Henry's Complete Commentary - Genesis 1:14-19
This is the history of the fourth day's work, the creating of the sun, moon, and stars, which are here accounted for, not as they are in themselves and in their own nature, to satisfy the curious, but as they are in relation to this earth, to which they serve as lights; and this is enough to furnish us with matter for praise and thanksgiving. Holy Job mentions this as an instance of the glorious power of God, that by the Spirit he hath garnished the heavens (Job 26:13); and here we have an... read more