Sin shall be unmasked!

(Thomas Brooks)

Sin so bewitches the soul, that it makes the soul call . . .
  evil good, and good evil;
  bitter sweet, and sweet bitter;
  light darkness, and darkness light.
Ah, souls! When you shall lie upon a dying bed, and stand before a judgment-seat—sin shall be unmasked, and its dress and robes shall then be taken off! Then sin shall appear more vile, filthy, and terrible than Hell itself!

Then that which formerly appeared . . .
  most sweet, will then appear most bitter,
  most beautiful, will then appear most ugly,
  most delightful, will then appear most dreadful to the soul!

"Your wickedness will punish you; your backsliding will rebuke you. Consider then and realize how evil and bitter it is for you when you forsake the LORD your God and have no awe of Me," declares the Lord, the LORD Almighty." Jeremiah 2:19