"For I say to you, that unless your righteousness exceeds the right-
eousness of the scribes and Pharisees, you will by no means enter the kingdom of heaven."
It is hard to exceed the pharisees' righteousness. They "out-Godded" God at every turn. God said, "Fast one day a year"; and the pharisees fasted twice a week. Still, our righteousness must exceed theirs, if we are to get to heaven at all. How? By doing more religion than the pharisees did? No; but by giving up on works altogether; and finding our righteous standing before God in Jesus alone (apprehended by grace through faith alone).
No one goes to heaven with any sin on the soul. What are we to do about this monumental problem? Nothing. Instead, we are to rest (by faith) in the One (Christ) who represents us (His church) before the throne of grace. Believing churchmen have perfect righteousness because Jesus' blood was shed for them.
[Puritan quote of the day: "As godly men shall never be condemned for their sins, so their sins shall never part God and them." --William Bridge, in "A Lifting Up for the Downcast"]