Hebrews 3:7-11

Because of this, it is just as the Holy Spirit says: "If today you hear his voice, harden not your hearts, as in the provocation, the very day of temptation, in the desert, where your fathers tested me, even though they had seen and examined my works for forty years. For this reason, I was enraged against this generation, and I said: They always wander astray in heart. For they have not known my ways. So it is as I swore in my wrath: They shall not enter into my rest!"