Hebrews 3:8-10 Harden not your hearts, as in the provocation, in the day of temptation in the wilderness:

UKJV⁽ⁱ⁾ ⁸ Harden not your hearts, as in the provocation, in the day of temptation in the wilderness: ⁹ When your fathers tempted me, proved me, and saw my works forty years. ¹⁰ Wherefore I was grieved with that generation, and said, They do always go astray in their heart; and they have not known my ways.