Charles Spurgeon Commentary Genesis 1:26-28

"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 birds of the heavens, and over the cattle, and over all the earth, and over every creeping thing that creepeth upon the earth. And 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 unto them, Be fruitful, and multiply, and replenish the earth, and subdue it; and have dominion over the fish of the sea, and over the birds of the heavens, and over every living thing that moveth upon the earth." — Genesis 1:26-28 (ASV)

God evidently meant the two persons, male and female, to complete the human being, and the fullness of human nature lies in them both. The earth is completed now that humanity has come upon it, and the human being is completed when the image of God is upon him, when Christ is formed in him the hope of glory, but not until then. When we have received the power of God, and have dominion over ourselves, and over all earthly things, in the power of God's eternal Spirit, then are we where and what God intends us to be.