New American Standard Bible (NASB)
Hebrews 3
19 So we see that they were not able to enter because of unbelief.
Hebrews 4
1 Therefore, let us fear if, while a promise remains of entering His rest, any one of you may seem to have come short of it.
2 For indeed we have had good news preached to us, just as they also; but the word they heard did not profit them, because it was not united by faith in those who heard.
3 For we who have believed enter that rest, just as He has said, "As I swore in My wrath, They shall not enter My rest," although His works were finished from the foundation of the world.
4 For He has said somewhere concerning the seventh day: "And God rested on the seventh day from all His works";
5 and again in this passage, "They shall not enter My rest."
6 Therefore, since it remains for some to enter it, and those who formerly had good news preached to them failed to enter because of disobedience,
7 He again fixes a certain day, "Today," saying through David after so long a time just as has been said before, "Today if you hear His voice, Do not harden your hearts."
8 For if Joshua had given them rest, He would not have spoken of another day after that.
9 So there remains a Sabbath rest for the people of God.
10 For the one who has entered His rest has himself also rested from his works, as God did from His.