Hebrews 4:6 in the King James Version
Seeing therefore it remaineth that some must enter therein, and they to whom it was first preached entered not in because of unbelief:
Context
5 and in this place again, “They will not enter into my rest.”
6 Seeing therefore it remains that some should enter into it, and they to whom the good news was preached before failed to enter in because of disobedience,
7 he again defines a certain day, “today”, saying through David so long a time afterward (just as has been said), “Today if you will hear his voice, don’t harden your hearts.”