'Enter' in the Bible

as I swore in my wrath, 'They will not enter into my rest.'"

To whom did he swear that they wouldn't enter into his rest, but to those who were disobedient?

We see that they were not able to enter in because of unbelief.

For we who have believed do enter into that rest, even as he has said, "As I swore in my wrath, they will not enter into my rest;" although the works were finished from the foundation of the world.

and in this place again, "They will not enter into my rest."

Seeing therefore it remains that some should enter therein, and they to whom the good news was before preached failed to enter in because of disobedience,

Let us therefore give diligence to enter into that rest, lest anyone fall after the same example of disobedience.

Having therefore, brothers, boldness to enter into the holy place by the blood of Jesus,