Long before the Exodus and the Ten Commandments, and even before the Fall, God still issued one Commandment to we His children. It was a simple one, and easily followed:
And God blessed them, saying: Increase and multiply, and fill the earth, and subdue it, and rule over the fishes of the sea, and the fowls of the air, and all living creatures that move upon the earth.
And God said: Behold I have given you every herb bearing seed upon the earth, and all trees that have in themselves seed of their own kind, to be your meat: And to all the beasts of the earth, and to every fowl of the air, and to all that move upon the earth, and wherein there is life, that they may have to feed upon.
And it was so done. And God saw all the things that he had made, and they were very good. And the evening and morning were the sixth day.
Well lookie how we have progressed to the present day: We now value contraception and abortion over increasing and multiplying to fill the whole universe with our children.
We are now more worried about ecological concerns over plants’ and animals’ survival than worrying about our unborn children.
The greatest sin of all is the Original sin, which was the one which brought about the Fall. It lives on even today as that tendency to fall away from love for God, that thing theologians call “concupiscence”, that disease of the soul which Christ’s hospital, the Church, was instituted to manage, cure, and ultimately eradicate. Amen.