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 fowl of the air, and over every living thing that moveth upon the earth.

Genesis 1.28

It is often forgotten that the first commandment God gave to humanity was not the prohibition against eating of the Tree of the Knowledge of Good and Evil. No, the first command was given in Genesis 1.29, "Be fruitful and multiply." The exact words written are:

(Be fruitful and multiply) = 500

This was immediately followed by God's first gift (Genesis 1.29):

And God said, Behold, I have given you every herb bearing seed, which is upon the face of all the earth, and every tree, in the which is the fruit of a tree yielding seed; to you it shall be for meat.

The root of the word translated as "I have given" is:

(Nathan, to give) = 500