Psalms 95:9 KJV

In context

8 Harden not your heart, as in the provocation, and as in the day of temptation in the wilderness:

9 When your fathers tempted me, proved me, and saw my work.

10 Forty years long was I grieved with this generation, and said, It is a people that do err in their heart, and they have not known my ways:

Read all of Psalms 95