John Gills Exposition of the Bible Commentary - Genesis 1:9
And God said, let the waters under the heaven be gathered together unto one place ,.... Which are before called the waters under the firmament; and which were either on the surface of the earth, or in the bowels of it, or mixed with it, which by the compressure of the expanse or air were separated from it and these, by apertures and channels made, were caused to flow as by a straight line, as the word F5 יקוו "congregentur tanquam ad amussim et regulam", Fagius; "recto et equabili... read more
Matthew Henry's Complete Commentary - Genesis 1:9-13
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, the earth, which was designed for the children of men, designed both for their habitation and for their maintenance; and here we have an account of the... read more