Apparently not, according to Scripture. Preachers often ignore, down-grade or twist 1 John 3:3-10 to mean something other than what it actually and clearly says. They confuse the two groups of people John is talking about, and forget that Christians, in Christ Jesus, have already done the things John addresses to those who are not in Christ Jesus. So how is the Christian sinless?
The Christian is sinless...
- ...because they are in Christ Jesus, Who Himself is sinless.
- ...because that which defined what sin is—the Law—is dead to them and they to it.
- ...because their sins—past, present, and future—have been totally forgiven, removed forever, and are remembered no more.
- ...because, when they rightly understand these things and their true identity in Christ Jesus, they walk uprightly in righteousness because wrong-doings are beneath them and they no longer want to commit them.
Wrong-doing is still wrong-doing (lying is still lying, stealing is still stealing, murder is still murder, immorality is still immorality, etc.), and there are still consequences for such in this world (emotional, mental, physical, spiritual), but it is not rightly called 'sin' because the Christian is not under the Law (Romans 7:8c-9). If the Christian's sins—past, present, and future—have been totally forgiven, removed forever, and are remembered no more (And they are!), then any future wrong-doings the Christian commits are not rightly called 'sins' because they have already been forgiven in Christ Jesus at the cross. The wrong-doings the Christian commits are no longer being accumulated nor are they being entered into the record, which was nailed to the cross (Col. 2:14).
Our sin debt was cancelled. There is nothing being added to it. Yes, the Christian can and does commit wrong-doings from time to time, but they are not rightly called 'sins' because they are not defined by the Law (the Law being dead to us and we to it), they are not being accumulated (God is not keeping score), and they are not being entered into the record (because it was nailed to the cross). So, if all these things are true (And they are!), how is it that preachers can falsely claim Christians still sin? Simple. By misunderstanding and not rightly exegeting and expositing Romans 7:14-25. By separating verses 14-25 from verse 13, where Paul asks his fourth rhetorical question that he is about to give an explanation for, and by ignoring the immediate context of verses 7-12, preachers twist this passage to mean something it does not mean. Understand verses 7-12 and then verses 15 and 19 will make complete sense to you. Romans 7 is man's encounter with the Law and trying to live up to its demands.
In Genesis 4, Yahweh God warns Cain about Sin (an entity, essence, force, power, presence, etc.)—not about individual personal sins. Paul also addresses this Sin in Romans 7. Do preachers actually believe Paul is passing the buck here? "It wasn't me; it was Sin!" Do they think Paul is teaching the heresy of the Gnostics? Or do they simply not understand?
If Yahweh God has already dealt with our sin problem—once and for all, then we no longer have a sin problem! "Love keeps no record of wrongs" (1 Cor. 13:5) because "love covers a multitude of sins" (1 Pet. 4:8). This is what Yahweh's love has done for us. God is not keeping score! If your theology teaches otherwise, then your theology is bankrupt and you need to find a better—and biblical—theology. By virtue of Jesus and His work on the cross, the Christian is holy, righteous, blameless, pure—and sinless! Repent and confess (Agree with God about) the truth of who you are!