15] While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation.
 For some, when they had heard, did provoke: howbeit not all that came out of Egypt by Moses.
 But with whom was he grieved forty years? was it not with them that had sinned, whose carcases fell in the wilderness?
 And to whom sware he that they should not enter into his rest, but to them that believed not?
 So we see that they could not enter in because of unbelief.
 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.
 For unto us was the gospel preached, as well as unto them: but the word preached did not profit them, not being mixed with faith in them that heard it.
 For we which have believed do enter into rest, as he said, As I have sworn in my wrath, if they shall enter into my rest: although the works were finished from the foundation of the world.