MKJV(i)
15 while it is said, "Today if you will hear His voice, harden not your hearts, as in the provocation."
16 For some, when they had heard, did provoke; however, not all who came out of Egypt by Moses.
17 But with whom was He grieved forty years? Was it not with those who had sinned, whose carcasses fell in the wilderness?
18 And to whom did He swear that they should not enter into His rest, but to those who did not believe?
19 So we see that they could not enter in because of unbelief.