And God created man in His own image, in the image of God He created him; male and female He created them. And God blessed them; and God said to them, "Be fruitful and multiply, and fill the earth, and subdue it; and rule over the fish of the sea and over the birds of the sky, and over every living thing that moves on the earth." (Genesis 1:27-28)
God designed marriage after the relationship of Christ and the Church. God designed fruitfulness, be fruitful and multiply. In other words, there was intent, design, and beauty associated in family creation. God said, behold, it was very good. Marriage and fruitfulness are expressions of His goodness. Marriage and fruitfulness are reflections that goodness on earth.
We are to see God's design as good. What a glorious honor to called, mother. All the daughters of Eve are to be characterized as Eve, the mother of all living (Genesis 3:20), how much more the daughters of Sarah. As a daughter of Eve, children are born of the flesh. As a daughter of Sarah, children are born of promise.
He makes the barren woman abide in the house as a joyful mother of children. Praise the LORD! (Psalm 113:9)