Martin Q. Blank said:
I have the general feeling that we shouldn't do that. But Jesus says
For I tell you, unless your righteousness exceeds that of the scribes and Pharisees, you will never enter the kingdom of heaven. Matt. 5:20
I think you need the context of the other nearby verses to answer the question posed.
This is the lead into the Sermon on the Mount and the New Moses giving us a new set of commandments (the Beatitudes). It is essentially a call to set high expectations for all people. Early in the Sermon, Christ proclaims:
Quote:
Think not that I have come to abolish the law and the prophets; I have come not to abolish them but to fulfil them. For truly, I say to you, till heaven and earth pass away, not an iota, not a dot, will pass from the law until all is accomplished. Whoever then relaxes one of the least of these commandments and teaches men so, shall be called least in the kingdom of heaven; but he who does them and teaches them shall be called great in the kingdom of heaven. For I tell you, unless your righteousness exceeds that of the scribes and Pharisees, you will never enter the kingdom of heaven (Matt. 5:17-20).
After setting these expectations, Jesus gives us several teachings that begin, "You have heard it was said . . . But I say to you . . ." (Matt. 5:21, 27, 33, 38, 43). Not only does he NOT relax any commandments, he goes to the other extreme and makes them stricter! For example, not only is adultery forbidden, we cannot even look at another lustfully (cf. Matt. 5:21-26). Further,
no exceptions are made; all are called to this higher way of living.
And, in Matt 5:48, Christ commands that we "be perfect, as your heavenly father is perfect" (Matt. 5:48). Christ literally has the highest possible expectations for each of us. But, wait, we know that "all have sinned and fallen short of the glory of God" (Rom. 3:23), but the bar set by the Son of God is what it is: actual perfection in Christ.
Does Jesus teach his followers to surpass the righteousness of the scribes and Pharisees? Yes. How? By obeying God from the heart, not simply with the lips. It's the result of a grace-created interior transformation in which believers can grow through authentic obedience (1 John 3:7) as true children of God (Matt. 5:45).