Those who walk most closely with God are not people who never sin, but rather, they are the ones who are most keenly aware of their shortcomings before God. Some people are continually justifying their questionable actions. They experience broken relationships but acknowledge no wrongdoing on their part. They participate in questionable moral or ethical practices and yet adamantly claim they have done no wrong. Their church condemns their immoral activities and these people angrily find another church.
There is also a Christian heresy that proclaims that Christians do not sin. Some assert that God, in His grace, loves His children regardless of how they behave. Clearly this is self-centered and deluded thinking.
The revered apostle spoke clearly on this point. Anyone who claims they have not sinned is a liar. Those who walk most closely with God are the ones who grieve most over their offenses. They recognize their sin for what it is, repent of it, and turn away from it. If people put half as much energy into turning from their sin as they do justifying it, they would be wonderful saints of God today! How are you handling the sin in your life?