The Gospel Acclamation at Mass read was John 15.16: "I chose you from the world, to go and bear fruit that will last, says the Lord." In the Gospel reading from Matthew 20, Jesus said to his disciples, "Whoever wishes to be great among you shall be your servant; whoever wishes to be first among you shall be you slave. Just so, the Son of Man did not come to be served but to serve and to give his life as a ransom for many." The message is very clear ~ we must go and bear fruit that will last, that is, to serve.
The people of the world just do the opposite...they bear fruit that does not last and lord it over others. They strive for top honors, prestige, position, power, wealth, and control. And the world admires, honors, or even worships them for it. All you do is look at the statues erected in the public squares, parks, and even on university campuses such as Penn State (in the news lately). At any rate, to enter the kingdom of God, humankind must pay close attention to what Jesus has said above.