Great is the power of prayer and intercession! The child of many prayers shall seldom be cast away. God's time of conversion may not be ours. He may think fit to prove our faith by keeping us long waiting. But so long as a child lives, and a parent prays, we have no right to despair about that child's soul.
Taken from the book Expository Thoughts on the Gospels by J.C. Ryle 1856