Hebrews 3:7-11

7Therefore (as the Holy Spirit saith, To day if ye will hear his voice, 8Harden not your hearts, as in the provocation, in the day of temptation in the wilderness: 9When your fathers tempted me, proved me, and saw my works forty years. 10Therefore I was grieved with that generation, and said, They do always err in their heart; and they have not known my ways. 11So I swore in my wrath, They shall not enter into my rest.)1