“God has given light to every man. The Holy Spirit convicts him of sin, righteousness, and judgment; sin which is transgression of the Law, holiness which is of the Law, and judgment which is by the Law. His conscience accuses him, the work of the Law written on the heart, and the Law condemns him.“ - Ray Comfort, “Hell’s Best Kept Secret”

“No, you don't need to experiment with particular sins in order to know the power of sin in your life. Think of it this way. Someone says: How can you really know the power of the temptation to lust – say to look at Internet nudity – if you've never given in and experienced it? Let me give an answer in a parable. There are three men – women, you supply the necessary changes to make the parable fit your situation – and each of the three stands beside a pit of lewdness and sin. Three ropes extend out of the pit, one bound around each man's waist. The strength of this narrow cord is one-hundred-pound test.

The first man begins to be pulled into the pit that looks exciting, but that he knows is deadly. Five pounds of pressure, ten pounds, fifteen pounds. He resists and fights back. Twenty pounds, twenty-five. He digs in his heels with all his might. Thirty pounds, thirty-five pounds, and the rope starts to squeeze and he stops resisting and jumps in. Click goes the mouse button.

The second man begins to be pulled into the pit. Five pounds of pressure, ten pounds, fifteen pounds. He resists and fights back. Twenty pounds, twenty-five pounds. He digs in his heels. Thirty pounds, thirty-five pounds, and the rope starts to squeeze. He says, No! and fights back. Forty pounds, forty-five pounds, fifty pounds, fifty-five pounds. It's harder to breathe as the rope tightens around his stomach and it begins to hurt. Sixty pounds, and he stops resisting and jumps into the pit. Click.

The third man begins to be pulled into the pit. Five, ten, fifteen, twenty, twenty-five pounds of pressure. He resists and fights back. Thirty, thirty-five, forty, and the rope starts to squeeze. He says, No! and fights back. Fifty pounds, sixty. It's harder to breathe as the rope tightens around his stomach and begins to hurt. Seventy pounds and his feet start to slip toward the pit. He cries out for help, and reaches out to grab a branch – shaped like a cross. In the distance he sees his wife going about her business, trusting him; he sees his children playing, and in their hearts admiring him. And beyond them all, he sees Jesus Christ with a gash in his side standing, with both hands lifted and fists clenched and smiling. And filled with passion, the third man holds fast. Seventy-five, eighty, eighty-five pounds, and the rope cuts into his sides and the pain stabs. Ninety, ninety-five and the tears flow unbidden down his cheeks. One hundred and the rope snaps. No click.

Question: which of these men knows the full power of temptation?

If this were a message on lust I would look around this room and say, "Are there any soldiers here? Does anyone in this room have blood on his shirt and scars on his side? Do you know the power of temptation? Or do you just jump in before its power is spent?" - John Piper

“The greatest evidence that you’re a Christian is the fact that, right now, you’re in the Word and God’s pointing out to you your sin. We have assurance that we have come to know Him, not just because one time we repented, but we are continuing to repent today. And it is not just that at one time we believed, but that we are continuing to believe today. And it is not just that at one time we walked with Him, we continue to walk with Him today. - Paul Washer

“I ask them, ‘How do [professing Christians] know that they’re saved?’ Well because they believe! How do you know that you believe? ‘Well I know in my heart of hearts that I am saved.’ The bible says that the heart is deceitfully wicked, Do you really want to trust a heart that can be wicked? Examine yourself. Take the Word of God, and what the Word of God says about a true Christian, and if you fall short of the test, repent. One of the greatest evidences that a person is truly a child of God is that they will be sensitive to the sin in their life. And they will be led to repentance and confession of that sin. If you don’t have a new relationship with sin, you don’t have a new relationship with God.” - Paul Washer

“We, on the other hand—poor blind creatures, here today and gone tomorrow, born in sin, surrounded by sinners, living in a constant atmosphere of weakness, infirmity and imperfection—can form none but the most inadequate conceptions of the hideousness of evil. We have no line to fathom it and no measure by which to gauge it. The blind man can see no difference between a masterpiece of Titian or Raphael and the queen’s head on a village signboard. The deaf man cannot distinguish between a penny whistle and a cathedral organ. The very animals whose smell is most offensive to us have no idea that they are offensive and are not offensive to one another. Fallen men and women, I believe, can have no just idea what a vile thing sin is in the sight of that God whose handiwork is absolutely perfect—perfect whether we look through telescope or microscope;” - J.C. Ryle

(Holiness: It's Nature, Hinderance, Difficulties, & Roots by J.C. Ryle p. 7)