Hebrews 3:9 in the King James Version
When your fathers tempted me, proved me, and saw my works forty years.
Context
8 don’t harden your hearts as in the rebellion, in the day of the trial in the wilderness,
9 where your fathers tested me and tried me, and saw my deeds for forty years.
10 Therefore I was displeased with that generation, and said, ‘They always err in their heart, but they didn’t know my ways.’