But he is qualified, because he is the Son of God. Jesus is the door, the key and the true path to the kingdom of God. And the good news is that God invites humans to enter his kingdom by putting their confidence in Jesus Christ. We cannot qualify on our own or by any amount of lawkeeping. Nor does lawkeeping maintain our salvation.
Salvation is a free gift.
The Bible uses many ways to describe the same thing. Being in the kingdom is the same as being adopted as children of God. It is the same as being born again as his children. It is the same as being redeemed from death. It is the same as being washed by the blood of the Lamb, or justified by his death.