20 To men that are just and upright, temptations become helps. Job, a man of discernment, was victorious in temptations. Sickness came upon him, and he complained not; disease afflicted him and he murmured not; his body failed and his strength departed, but his will was not weakened. He proved perfect in all by sufferings, for as much as temptations crushed him not. Abraham was a stranger, from his place, his race [and his kindred]. But by this he was not harmed; nay rather he triumphed greatly.
So Joseph from the house of bondage was made to rule as king of Egypt. They of the company of Ananias and Daniel delivered others from bondage. See then, O you that are wise, the power that freedom possesses; that nothing can injure it unless the will is weakened. Israel with sumptuous living waxed fat, and kicked, and forgot his covenant. He worshipped vain gods, and forgot the nature of his creation. The bondage that was in Egypt he forgat in the repose of the desert. As often as he was afflicted, he acknowledged the Lord alone; but when he was dwelling in repose, he forgot God his Redeemer.
Seek not here repose, for this is a world of toil. And if you can wisely discern, change not time for time; that which abides for that which abides not; that which ceases not for that which ceases; nor truth for lying; nor body for shadow; nor watching for slumber; nor that which is in season for that which is out of season; nor the Time for the times. Collect your mind, let it not wander among varieties which profit not.
Source: On Admonition and Repentance (New Advent)