This is an odd question. What difference does it make to your living to know?
Here's what God says about each one of His children concerning sin:
Romans 6:6-12
6 knowing this, that our old man was crucified with Him, that the body of sin might be done away with, that we should no longer be slaves of sin.
7 For he who has died has been freed from sin.
8 Now if we died with Christ, we believe that we shall also live with Him,
9 knowing that Christ, having been raised from the dead, dies no more. Death no longer has dominion over Him.
10 For the death that He died, He died to sin once for all; but the life that He lives, He lives to God.
11 Likewise you also, reckon yourselves to be dead indeed to sin, but alive to God in Christ Jesus our Lord.
12 Therefore do not let sin reign in your mortal body, that you should obey it in its lusts.
The modern Church has been overtaken with the idea that constant sin is an unavoidable fact of living. Sin, apparently, is an unshakeable and terrible "monkey" on the back of every disciple of Christ, crushing them to the ground at every turn. Doesn't sound like the victorious, holy living described in the Bible as the joyful prospect of every believer who abides in Christ.
Romans 6:17-18
17 But God be thanked that though you were slaves of sin, yet you obeyed from the heart that form of doctrine to which you were delivered.
18 And having been set free from sin, you became slaves of righteousness.
Romans 8:2-4
2 For the law of the Spirit of life in Christ Jesus has made me free from the law of sin and death.
3 For what the law could not do in that it was weak through the flesh, God did by sending His own Son in the likeness of sinful flesh, on account of sin: He condemned sin in the flesh,
4 that the righteous requirement of the law might be fulfilled in us who do not walk according to the flesh but according to the Spirit.
Romans 8:12-13
12 Therefore, brethren, we are debtors--not to the flesh, to live according to the flesh.
13 For if you live according to the flesh you will die; but if by the Spirit you put to death the deeds of the body, you will live.
I don't go in for the [bless and do not curse][bless and do not curse][bless and do not curse][bless and do not curse]-eyed notion of sinless perfection, but I certainly think Scripture gives us ample reason (see above) to think that as we walk with God and go deeper with Him, sin can become the exception rather than the rule in our lives.
As I have read the myriad responses over the years on hundreds - maybe thousands now - of threads on this site, it has been made evident that much of what was once common knowledge among believers has been crowded out of view entirely by the steady juvenilization of the Christian community. Pastors today often make doctrine the enemy of godly love, preaching that the former necessarily diminishes the latter, and this false dichotomy has led many Christians to ignorance of the deeper, "meatier" truths of their faith. Believers have also become increasingly sensual about their faith and worship of God, preferring the hyper-stimulation of a Hillsong concert, or the emotional chaos of being "slain in the Spirit," to three or four hours spent in quiet, worshipful, thoughtful study of God's Word. And as this slide into spiritual immaturity has progressed, the idea that sin must rule the believer alongside the Spirit has become one of the most deeply entrenched false beliefs of modern Christianity.
Galatians 5:16
16 I say then: Walk in the Spirit, and you shall not fulfill the lust of the flesh.
Selah.