The real problem is not why some pious, humble, believing people suffer, but why some do not.
C. S. Lewis
He will be infinitely merciful to our repeated failures; I know no promise that He will accept a deliberate compromise. For He has, in the last resort, nothing to give us but Himself; and He can give that only insofar as our self-affirming will retires and makes room for Him in our souls.
When he was a young man he prayed constantly for chastity; but years later he realized that while his lips had been saying 'Oh Lord, make me chaste,' his heart had been secretly adding, 'But please don't do it just yet.
But the Christian thinks any good he does comes from the Christ-life inside him. He does not think God will love us because we are good, but that God will make us good because He loves us; just as the roof of a greenhouse does not attract the sun because it is bright, but becomes bright because the sun shines on it.