These are going to all be sentiments which show the grace of God, in one verse after another. Now she is opening up a great principle.
What happened when you were saved and Christ heard your call and your repentance? It was because you were brought down from pride and self-sufficiency to recognise your need, and to desire humility. You humbled yourself before the Lord and called to him for salvation and grace. This is the strange and particular work of God: to humble the proud, and to lift up the humble, showing what he hates and what he loves.
It's not just about children. This might be literally true in many cases, but it's also true spiritually. There are those who don't have, it would seem, such great opportunities for family and so on, and God uses them mightily to bring them spiritual children, and uses them in his kingdom magnificently, and it is always true that the barren hath borne seven and she that hath many children is waxed feeble.’