Each day, hitherto, has produced very noble and excellent beings, which we can never sufficiently admire; but we do not read of the creation of any living creature till the fifth day, of which these verses give us an account. The work of creation not only proceeded gradually from one thing to another, but rose and advanced gradually from that which was less excellent to that which was more so, teaching us to press towards perfection and endeavour that our last works may be our best works. It was on the fifth day that the fish and fowl were created, and both out of the waters. Though there is one kind of flesh of fishes, and another of birds, yet they were made together, and both out of the waters; for the power of the first Cause can produce very different effects from the same second causes. Observe, 1. The making of the fish and fowl, at first, Gen 1:20, Gen 1:21. God commanded them to be produced. He said, Let the waters bring forth abundantly; not as if the waters had any productive power of their own, but, "Let them be brought into being, the fish in the waters and the fowl out of them." This command he himself executed: God created great whales, etc. Insects, which perhaps are as various and as numerous as any species of animals, and their structure as curious, were part of this day's work, some of them being allied to the fish and others to the fowl. Mr. Boyle (I remember) says he admires the Creator's wisdom and power as much in an ant as in an elephant. Notice is here taken of the various sorts of fish and fowl, each after their kind, and of the great numbers of both that were produced, for the waters brought forth abundantly; and particular mention if made of great whales, the largest of fishes, whose bulk and strength, exceeding that of any other animal, are remarkable proofs of the power and greatness of the Creator. The express notice here taken of the whale, above all the rest, seems sufficient to determine what animal is meant by the Leviathan, Job 41:1. The curious formation of the bodies of animals, their different sizes, shapes, and natures, with the admirable powers of the sensitive life with which they are endued, when duly considered, serve, not only to silence and shame the objections of atheists and infidels, but to raise high thoughts and high praises of God in pious and devout souls, Psa 104:25, etc. 2. The blessing of them, in order to their continuance. Life is a wasting thing. Its strength is not the strength of stones. It is a candle that will burn out, if it be not first blown out; and therefore the wise Creator not only made the individuals, but provided for the propagation of the several kinds; God blessed them, saying, Be fruitful and multiply, Gen 1:22. God will bless his own works, and not forsake them; and what he does shall be for a perpetuity, Ecc 3:14. The power of God's providence preserves all things, as at first his creating power produced them. Fruitfulness is the effect of God's blessing and must be ascribed to it; the multiplying of the fish and fowl, from year to year, is still the fruit of this blessing. Well, let us give to God the glory of the continuance of these creatures to this day for the benefit of man. See Job 12:7, Job 12:9. It is a pity that fishing and fowling, recreations innocent in themselves, should ever be abused to divert any from God and their duty, while they are capable of being improved to lead us to the contemplation of the wisdom, power, and goodness, of him that made all these things, and to engage us to stand in awe of him, as the fish and fowl do of us.

Let fowl multiply in the earth - It is truly astonishing with what care, wisdom, and minute skill God has formed the different genera and species of birds, whether intended to live chiefly on land or in water. The structure of a single feather affords a world of wonders; and as God made the fowls that they might fly in the firmament of heaven, Gen 1:20, so he has adapted the form of their bodies, and the structure and disposition of their plumage, for that very purpose. The head and neck in flying are drawn principally within the breast-bone, so that the whole under part exhibits the appearance of a ship's hull. The wings are made use of as sails, or rather oars, and the tail as a helm or rudder. By means of these the creature is not only able to preserve the center of gravity, but also to go with vast speed through the air, either straight forward, circularly, or in any kind of angle, upwards or downwards. In these also God has shown his skill and his power in the great and in the little - in the vast ostrich and cassowary, and In the beautiful humming-bird, which in plumage excels the splendor of the peacock, and in size is almost on a level with the bee.

And God blessed them,.... With a power to procreate their kind, and continue their species, as it is interpreted in the next clause,

saying, be fruitful, and multiply, and fill the waters in the seas: and these creatures do multiply exceedingly, and vast quantities there are of them in the mighty waters, though the consumption of some sorts of them is very great. Our English word "fish" is derived from the Hebrew word "fush", which signifies to multiply and increase:

and let fowl multiply in the earth; as they did, and continue to do to this day.

FIFTH DAY. The signs of animal life appeared in the waters and in the air. (Gen 1:20-23)

moving creature--all oviparous animals, both among the finny and the feathery tribes--remarkable for their rapid and prodigious increase.

fowl--means every flying thing: The word rendered "whales," includes also sharks, crocodiles, &c.; so that from the countless shoals of small fish to the great sea monsters, from the tiny insect to the king of birds, the waters and the air were suddenly made to swarm with creatures formed to live and sport in their respective elements.