This is just the difference between the Christian and the worldling

(Charles Spurgeon)

"Naked I came from my mother's womb, and naked I will depart. The LORD gave
 and the LORD has taken away; may the name of the LORD be praised." Job 1:21

"It was good for me to be afflicted - so that I might learn Your decrees." Psalm 119:71

This is just the difference between the Christian and the worldling:
  The worldling blesses God while He gives him plenty,
  but the Christian blesses Him when He smites him!

He believes God to be too wise to err - and too good to be unkind.

He trusts God's heart - where he cannot trace God's hand.

He looks up to Him in the darkest hour - and believes that all is well.

"We know that God causes all things to work together for good to those who
 love God, to those who are called according to His purpose." Romans 8:28