He does, why do you not teach it then?
Jesus doesn't say to never mind what he preached when he walked the earth and told how to enter.
…unless your righteousness surpasses that of the Pharisees and the teachers of the law,
you will certainly not enter the kingdom of heaven; Matthew 5:32.
…unless you change and become like little children,
you will never enter the kingdom of heaven; Matthew 18:3.
Matthew 7:13 “
Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it.
Matthew 7:21
“Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of heaven, but only the one who does the will of my Father who is in heaven.
Matthew 19:17 “Why do you ask me about what is good?” Jesus replied. “There is only One who is good.
If you want to enter life, keep the commandments.”
Matthew 23:13 “Woe to you, teachers of the law and Pharisees, you hypocrites! You shut the door of the kingdom of heaven in people’s faces.
You yourselves do not enter, nor will you let those enter who are trying to.
John 3:5 Jesus answered, “Very truly I tell you,
no one can enter the kingdom of God
unless they are born of water and the Spirit.
John 10:1 [ The Good Shepherd and His Sheep ] “Very truly I tell you Pharisees,
anyone who does not enter the sheep pen by the gate, but climbs in by some other way, is a thief and a robber.