What is the distinction between worldly and true repentance?

Sam Waldron explains in this video that one of the differences between true and false repentance is that those who truly repent sorrow for the sin itself while those who falsely repent only display sorrow for the consequences that stem from sin. 

While true Christians are certainly sorrowful for the consequences of their sin, that sorrow serves a motivation for genuine repentance. If someone’s sorrow for sin never goes beyond a simple fear of its consequences and does not include a hatred of sin itself, that repentance is not genuine.

2 Corinthians 7:10 (NKJV) – “ For godly sorrow produces repentance leading to salvation, not to be regretted; but the sorrow of the world produces death.” 

First of all, one of the differences, and you'll find this in Reformed literature as it expands the Bible in many places, But one of the differences is that true repentance involves sorrow for sin itself, whereas one of the earmarks of false repentance is that it is only sorry for the consequences. Now this is a little bit of a tender thing, pastorally, because certainly true Christians feel sorry for the consequences of their sins. And one of the things that brings people to repentance is a sense of the consequences of their sins. Flee, said John the Baptist, from the wrath to come. Except you repent, you will all likewise perish.

So the prospect of perishing under the wrath of God is certainly a motivation, a call to genuine repentance. But if someone's sense of sin never goes beyond a simple fear of its consequences and does not include any element of a hatred of sin itself, then that repentance is finally not genuine. The other distinction between what might be called false repentance and genuine repentance is the distinction, it goes back to the distinction between conviction of sin and true repentance. There are a number of illustrations of people in the Bible that felt deep conviction of sin. Judas Iscariot said, I have sinned by the by betraying the innocent blood, but he was not saved.

He went out and hung himself. Similarly on the day of Pentecost when Peter was preaching, his countrymen said to him, men, brothers, what shall we do? Obviously, they had heard and understood that they were in opposition to God. They killed Jesus, God raised him from the dead. Obviously, God was in an entirely different position in terms of his attitude about Jesus than they were.

And they felt, they began to feel, and what motivated their question, men and brothers, what shall we do, was a sense of conviction of sin. But clearly, they had not yet repented because Peter's call is, repent and be baptized and you will receive the forgiveness of sins and the gift of the Holy Spirit. So there is a conviction of sin that does not yet rise to repentance. And what's the great difference? The great difference between that kind of conviction of sin or false repentance is that it lacks the ingredient, both in Judas and still in the people at Pentecost whom Peter was preaching, it lacks the ingredient of true faith in Christ.

Faith in Christ, the kind of conviction of sin that makes a man go to Christ and take him as Savior, receive him as Savior, rest on him as Savior and Lord, receive him as Savior and Lord. This is one of the great distinctions as well between what we might call false repentance or mere conviction of sin and true repentance. I'm not sure what I should do. I'm not sure what I should do. I'm not sure what I should do.