All things work out for good for those who love God and are called according to his purpose. Romans 8:28
We know that in everything God works for the good of those who love him, whom he has called according to his plan. Those whom he knows beforehand and whom he chose.
The book of Job is the story of the holy man Job whom Yahweh tested him by taking everything away from him, and in spite of this, Job had remained steadfast, trusting God who always rewards the just.
Job lived in a foreign pagan land of UZ. His position was enviable : he was a leader of nomads, somewhat like Abraham; and he lacked nothing. He did not belong to God’s people but he used to contemplate nature to believe in God and his providence. Job had not seen God and God had never addressed his word to him. Yet, Job felt himself to be the work of God.
In this case, God is challenged by Satan, the enemy. In spite of himself, God had to test Job to defend his own honor. He put Job in Satan’s power but he is not to lay a finger upon the man himself.
One day when all his children; seven sons and three daughters died and all his cattle; seven thousand sheep, three thousand camels, five hundred yoke of oxen and five hundred donkeys carried off and killed, in his misfortune did not say anything foolish against God. Job did not look after his own interests and he did not blame God for the existing evil either.
In grief Job tone his clothes and shaved his head. Then he feel to the ground and worshiped God for he knew all things work out for good for those who love God. He had learnt to receive good and accept evil. At the end, God gave everything back to him, much more than his earlier ones.
God tests his people through hardship.