7 Therefore, just as athe Holy Spirit says,

“bToday if you hear His voice,

8 aDo not harden your hearts as 1when they provoked Me,

As in the day of trial in the wilderness,

9 aWhere your fathers tried Me by testing Me,

And saw My works for bforty years.

10 “aTherefore I was angry with this generation,

And said, ‘They always go astray in their heart,

And they did not know My ways’;

11 aAs I swore in My wrath,

‘They shall not enter My rest.’ ”

The Peril of Unbelief

12 aTake care, brethren, that there not be in any one of you an evil, unbelieving heart 1that falls away from bthe living God.

13 But aencourage one another day after day, as long as it is still called “Today,” so that none of you will be hardened by the bdeceitfulness of sin.

14 For we have become partakers of Christ, aif we hold fast the beginning of our bassurance firm until the end,

15 while it is said,

“aToday if you hear His voice,

Do not harden your hearts, as 1when they provoked Me.”

16 For who aprovoked Him when they had heard? Indeed, bdid not all those who came out of Egypt led by Moses?

17 And with whom was He angry for forty years? Was it not with those who sinned, awhose bodies fell in the wilderness?

18 And to whom did He swear athat they would not enter His rest, but to those who were bdisobedient?

19 So we see that they were not able to enter because of aunbelief.