One doesn't have to repent of one's sins?
Really?
I guess God was not being honest when He told the Israelites to repent of their sins...
Ezekiel 18:30 Therefore I will judge you, O house of Israel, every one according to his ways, saith the Lord GOD. Repent, and turn yourselves from all your transgressions; so iniquity shall not be your ruin.
The word repent in that verse is the same word as the word turn. And the verse says turn from your transgressions; i.e., sins.
Repenting and turning from sin are not the same thing, but they accompany each other. Repentance is the realization that we are sinners in danger of perishing.
Now, once a person sees this, turning from sin naturally occurs. Maybe an analogy.
Have you ever hurt someone in your life? I mean really done something wrong that hurt another person terribly? I hate to admit it, but I have. Once you realize this, you indeed become sincerely sorry that you did so. This is repentance, realizing that you have done serious wrong. Now, once you do this, it is natural to resolve never to do it again.
It is the same with God. Once we realize that we have seriously offended a good and holy God, we should be sorry we have done so. If so, it is natural that we should desire never to repeat these actions again. We will fail of course, but overall we will have a new attitude that desires never to sin against God again.
I believe this is the change of heart. When we realize that God loved us even though we are wicked sinners, and gave his Son that we might have forgiveness, we become sincerely sorry we have sinned against God and hurt him. It naturally follows that we will try not to sin against God again. Our heart is changed through love, we serve out of gratitude and love, not fear.
Repentance is realizing you are a lost sinner, or turning from a false view.
Another example of repentance is shown in Acts.
Acts 2:36 Therefore let all the house of Israel know assuredly, that God hath made that same Jesus,
whom ye have crucified, both Lord and Christ.
37 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?
38 Then Peter said unto them,
Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.
Here Peter preached to these Jews and proved from scripture that Jesus was the promised Christ the Jews were expecting. These Jews had been convinced by the scribes and Pharisees that Jesus was a blasphemer who deserved death. Now they realized they had killed God's Son and were pricked in their hearts. They recognized their dire predicament.
Peter tells them to repent of this false view of Jesus they held, and to believe he was indeed the promised Christ who died for their sins, and to trust in him for forgiveness of sins.
It would only be natural that recognizing Jesus as the Lord they would turn to obey him. That is the natural result of true belief.