(Matthew 5:13-16)
You are the salt of the earth: but if the salt have lost his flavor, with which shall it be salted? it is thereafter good for nothing, but to be cast out, and to be trodden under foot of men.
You are the light of the world. A city that is set on an hill cannot be hid. Neither do men light a candle, and put it under a bushel, but on a candlestick; and it gives light to all that are in the house. Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.
(Matthew 5:17-20)
Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfill. For truly I say to you, Till heaven and earth pass, one stroke or one pronunciation mark shall in no wise pass from the law, till all be fulfilled. Whoever therefore shall break one of these least commandments, and shall teach men so, he shall be called the least in the kingdom of heaven: but whoever shall do and teach them, the same shall be called great in the kingdom of heaven.
For I say to 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.