Hebrews 4:1; Hebrews 4:6-8

Hebrews 4:1

1 Let us therefore fear, lest a promise being left [us] of entering into his rest, any of you should seem to come short of it.

Hebrews 4:6-8

6 Seeing therefore it remaineth that some must enter into it, and they to whom it was first preached entered not because of unbelief:

7 (Again, he limiteth a certain day, saying in David, To-day, after so long a time; as it is said, To-day, if ye will hear his voice, harden not your hearts.

8 For if Jesus had given them rest, then he would not afterward have spoken of another day.