What does God mean when He tells Adam and Eve to fill the earth and subdue it (Genesis 1:28)?

Then comes the proclamation of the rule assigned them by God. Not only were they, like others, to multiply and fill the earth, they were to subdue, or bring it into subjection. Next He adds as before, "and have dominion over fish of the sea and over bird of the heavens, and over every living thing that creeps on the earth." Thus from the outset was man, even when enumerated as a being fresh from God, set apart essentially. None other was to subdue the earth. He alone had the God-given capacity. He alone was called to have dominion. Development in the Darwinian sense is not only an illusion, but at plain issue with the word of God. A striking and practical proof of the reality of this dominion as far as every beast and every bird was given to Adam (Gen. 2:19) when Jehovah Elohim brought them to see what their lord would call them; and whatever he called each living soul (or, creature), that was its name: a fact full of interest otherwise on which some remark will fall in its season. He was owned by God in that place of authority which entitled him to give each subject creature its name.

God then blessed them and told them, “Be fruitful and multiply, and fill the earth and subdue it; and rule over the fish of the sea and over the birds of the sky, and over every living thing that moves on the earth.” This was said before sin entered the scene. Some have claimed that sexual union is sinful, but this is true only outside the marriage bond. At this time Adam and Eve were to rule over other animate creatures. By sin they spoiled this, so that man does not now have the same authority over animals, though Noah was told, “the fear of you and the dread of you shall be upon every beast” etc. (Gen. 9:2). This is a mercy of God, for otherwise animals could take terrible advantage of their superior strength to terrorize men.

God then blessed them and told them, "Be fruitful and multiply, and fill the earth and subdue it; and rule over the fish of the sea and over the birds of the sky, and over every living thing that moves on the earth." This was said before sin entered the scene. Some have claimed that sexual union is sinful, but this is true only outside the marriage bond. At this time Adam and Eve were to rule over other animate creatures. By sin they spoiled this, so that man does not now have the same authority over animals, though Noah was told, "the fear of you and the dread of you shall be upon every beast" etc. (Gen. 9:2). This is a mercy of God, for otherwise animals could take terrible advantage of their superior strength to terrorize men.

Enough of this for the present, then. Along with all other provision for his blessing we must rank this — too little thought of — that Adam was to be taught mastery also, even in a scene where moral evil was not. He was to "replenish the earth and subdue it" to "dress and keep" even the "garden of delight." The dominion over the lower creatures he was also evidently to maintain, making them to recognize habitually the place of lordship over them which was his. All this implies much in the way of moral education for one in whose perfect manhood the moral and mental faculties acted in harmony yet, with no breach or dislocation.

We must go back to Genesis for the beginning of our subject. “Be fruitful and multiply and replenish the earth,” God said, “and subdue it, and have dominion. … .” (Gen. 1:28) What equipment was given to man to enable him to fulfil this latter part of the divine counsel? Not superior physical attainments, such as strength and speed, but a mind — and what a marvellous endowment that was! Neglected, misused, often yielded to the service of Satan, yet how stupendous have been the mental achievements of mankind! In an undefiled world, what might not man have become!

Finally, on the sixth day, it is the earth produces the living soul, and then the lord of the whole scene, the summit of God's work, is introduced into it, and all is put into his hand. He is to "subdue" and "hold" it "in subjection." Mastery is evidently here a principal thought, as we see it is in what we shall find to be in designed connection with this sixth day's work, — the life of Joseph.

To Noah and his sons He said, "As the green herb have I given you all things;" to us the word declares, "Blessed with all spiritual blessings in heavenly places in Christ." Though God gave them more than He gave Adam, they had to learn it was not restoration to his original position, but a new one altogether that they entered upon. The difference between the place in creation of a fallen and an unfallen creature was not forgotten. "Be fruitful, and multiply, and replenish the earth," God had said to Adam: "Be fruitful, and multiply, and replenish the earth," He also said to Noah and his sons. But to Adam He added, what to Noah He did not, "and subdue it." Was this omission accidental? To subdue the earth was God's original design for man on earth. By the fall he lost that place, and never can regain it. Another man will effect this — the Head of the new creation. No fallen creature could ever fill this place. Their position, then, as regards the earth, told of the fall, whilst their grant of the articles of food told of the sweet savour of the sacrifice.

We shall now consider man's place, as set over the works of God's hands. All having been set in order, one was needed to take the headship. "And God said, Let us make man in our image, after our likeness; and let them have dominion over the fish of the sea, and over the fowl of the air, and over the cattle, and over all the earth, and over every creeping thing that creeps upon the earth. So God created man in His own image, in the image of God created he him; male and female created he them. And God blessed them, and God said to them, Be fruitful and multiply, and replenish the earth, and subdue it; and have dominion over the fish of the sea, and over the fowl of the air, and over every living thing that moves upon the earth." My reader will observe the change from "him" to "them." We are not presented with the actual fact of the formation of the woman, until the next chapter; though here we find God blessing "them" and giving "them" jointly the place of universal government. All the inferior orders of creation were set under their joint dominion. Eve received all her blessings in Adam. In him, too, she got her dignity. Though not yet called into actual existence, she was, in the purpose of God, looked at as part of the man. "In thy book were all my members written, which, in continuance were fashioned, when as yet there was none of them."

But to return, we read, "And God blessed them; and God said to them, Be fruitful, and multiply, and fill the earth, and subdue it; and have dominion over fish of the sea and bird of the heavens, and over every living thing that creeps on the earth" (ver. 28). Man, as Prof. Owen said, is the sole species of his genus, and the sole representative of his species.

This is the second benediction of creation. The first was when God made the creatures that peopled the waters and the air of Adam's world, the earliest to enjoy animal life in that state of things. God has pleasure in blessing His creatures that have a life even of a lowly kind to appreciate the fruits of His goodness, and especially in view of their reproduction and multiplying within their sphere. Here, a second time, He blessed mankind, male and female, of whom alone it is said, though the detailed difference is reserved for a subsequent and more fitting occasion. In verse 22 we have only "saying," but here "God said to them, Be fruitful," etc. Man was the depository of God's revelation, as he ought to be His priest, and, as we have seen, His viceroy. This is more than the interpreter of nature, as one of our sages styled him. He had intercourse with God at once.

Language thus was in no way the slow invention of man's wit, but an immediate endowment of our first parents by God from creation. Here His word assures us of its reality from the first day of man's creation; and everything confirms in the chapters that follow. To imagine otherwise is to disbelieve the Bible and prefer one's own thoughts or the dreams of other men, as if we or they could know anything about the matter. He Who alone knows all has been pleased to tell us the truth through Moses. His word was valid for the unintelligent creation: how comforting for the human pair to hear Him say, Be fruitful, and multiply, and fill the earth and subdue it! Even though man comes in as a creature with the rest, still he is introduced exceptionally as the crown of creation; and the higher creatures are pronounced good separately from man, who is blessed, male and female, in an address to them as at the head of all the rest.

Then again one can understand how favourable the lengthened span of life in those days was to carrying out God's word in blessing the first pair, Be fruitful, and multiply, and replenish the earth, and subdue it; and have dominion over fish of the sea, and over bird of the heavens, and over every living thing that moves upon the earth. Thus not only is the fact unquestionable for all that respect revelation, but the wisdom, not to say necessity, of that exceptional condition, is pretty apparent.