Hebrews 3
7 Ref Therefore, even as the Holy Spirit says, "Today if you will hear his voice,
8 Ref Don't harden your hearts, as in the provocation, Like as in the day of the trial in the wilderness,
9 Ref Where your fathers tested me by proving me, And saw my works for forty years.
10 Ref Therefore I was displeased with that generation, And said, 'They always err in their heart, But they didn't know my ways;'
11 Ref As I swore in my wrath, 'They will not enter into my rest.'"
12 Ref Beware, brothers, lest perhaps there be in any one of you an evil heart of unbelief, in falling away from the living God;
13 Ref but exhort one another day by day, so long as it is called "today;" lest any one of you be hardened by the deceitfulness of sin.