It must have been very important in God's heart and mind to give Adam and Eve the blessing commission to "Be fruitful, and multiply, and fill the earth" (Genesis 1:28). He had already created them with a sexual desire for one another, consequently fruitfulness would have happened naturally (at least back in those days when they didn't use birth control).
However, God not only created the man and wife with a sexual desire for one another, but issued a mandate for them to be fruitful as well. He wanted to make sure they knew this was His plan for subduing the world and advancing His kingdom.
God's plan hasn't changed since He first gave the mandate. God does not chop and change His ideas. Are we in line with God's plan?
Love from Nancy