My study Bible states in the notes, "No image better conveys human emotional suffering in biblical times than that of the barren woman. In that time and culture, a barren woman was without significance and without joy. Note that God stoops down to bring her the joy for which she craves--happy children. Salvation is like that. Not only does God fill us with significance, but also with joy."
I agree, even though there may not be the same social stigma now as there was in biblical times, that not being able to have children is intense human emotional suffering. I've been there, I've walked that road. I've spent Mother's Days in grief and left church in tears. I know that joy for which that barren woman craved. I craved it myself. And then God gave me that for which I craved. I prayed for one, and then just one more. God doubled what I requested of him, he filled my cup to overflowing, and he filled my heart with the unique joy of motherhood.
This was the joy that greeted me this morning. Four handmade Mother's Day cards from my babies. There's nothing sweeter than a card made just for you. I love 'em!