Hebrews 4:3-8

For we who have believed do enter into that rest; even as he hath said, As I sware in my wrath, They shall not enter into my rest: although the works were finished from the foundation of the world. For he hath said somewhere of the seventh day on this wise, And God rested on the seventh day from all his works; and in this place again, They shall not enter into my rest. Seeing therefore it remaineth that some should enter thereinto, and they to whom the good tidings were before preached failed to enter in because of disobedience, he again defineth a certain day, To-day, saying in David so long a time afterward (even as hath been said before), To-day if ye shall hear his voice, Harden not your hearts. For if Joshua had given them rest, he would not have spoken afterward of another day.