Monergism

“Sin lives in a costume; that's why it's so hard to recognize. The fact that sin looks so good is one of the things that make it so bad. In order for it to do its evil work, it must present itself as something that is anything but evil. Life in a fallen world is like attending the ultimate masquerade party. Impatient yelling wears the costume of a zeal for truth. Lust can masquerade as a love for beauty. Gossip does its evil work by living in the costume of concern and prayer. Craving for power and control wears the mask of biblical leadership. Fear of man gets dressed up as a servant heart. The pride of always being right masquerades as a love for biblical wisdom. Evil simply doesn't present itself as evil, which is part of its draw. You'll never understand sin's sleight of hand until you acknowledge that the DNA of sin is deception. Now, what this means personally is that as sinners we are all very committed and gifted self-swindlers. … We're all too skilled at looking at our own wrong and seeing good.”
—Paul David Tripp, Whiter Than Snow: Meditations on Sin and Mercy (Crossway 2008), p. 32.