See Genesis 1:27 & 28. Immediately after God created mankind He issued the first command to them (us):
[1:27] So God created humankind in his image, in the image of God he created them; male and female he created them.
[1:28] God blessed them, and God said to them, "Be fruitful and multiply, and fill the earth and subdue it; and have dominion over the fish of the sea and over the birds of the air and over every living thing that moves upon the earth."
[1:27] So God created humankind in his image, in the image of God he created them; male and female he created them.
[1:28] God blessed them, and God said to them, "Be fruitful and multiply, and fill the earth and subdue it; and have dominion over the fish of the sea and over the birds of the air and over every living thing that moves upon the earth."