7 Therefore, as the Holy Spirit says:
"Today, if you hear His voice,
8 do not harden your hearts,
as you did in the rebellion,
in the day of testing in the wilderness,
The Peril of Unbelief
12 See to it, brothers, that none of you has a wicked heart of unbelief that turns away from the living God. 13 But exhort one another daily, as long as it is called today, so that none of you may be hardened by sin’s deceitfulness.
15 As it has been said:
"Today, if you hear His voice,
do not harden your hearts,
as you did in the rebellion."3:15 Psalm 95:7–8