How did Christ estimate the righteousness of the scribes and Pharisees?

Answer

"For I say unto you, That except your righteousness shall exceed the righteousness of the scribes and
Pharisees, you shall in no case enter into the kingdom of heaven!' Verse 20.

What concrete example makes clear the meaning of this doctrine?
How did persecution affect the preaching of the gospel?
How enduring is the moral law?
What did the Apostle Paul say the \"man of sin\" would do?
How early was this tendency manifested?
How did David express himself on this point?
With what were many possessed in Christ's time?

Questions & Answers are from the book Bible Readings for the Home Circle