For all whom the Lord has chosen and received into the society of his saints ought to prepare themselves for a life that is hard, difficult, laborious, and full of countless griefs. It is the will of their heavenly Father to try them in this manner that he may test them.

For though Christ was his most beloved Son, in whom the Father was always well pleased, yet we see that he was not treated with indulgence and tenderness, so that it may be truly said that he was not only continuously afflicted, but that his whole life was a perpetual cross.

~ John Calvin.