Hebrews 4:6-9

Since therefore it remains that some must enter it, and those to whom it was first preached did not enter because of disobedience, again He designates a certain day, saying in David, “Today,” after such a long time, as it has been said: “Today, if you will hear His voice, Do not harden your hearts.” For if Joshua had given them rest, then He would not afterward have spoken of another day. There remains therefore a rest for the people of God.