Psalms 95:8

8 ado not harden your hearts, as at bMeribah,
as on the day at cMassah in the wilderness,

Hebrews 3:15-16

15As it is said,

dToday, if you hear his voice,
do not harden your hearts as in the rebellion.”
16For ewho were those who heard and yet rebelled? Was it not fall those who left Egypt led by Moses?
Copyright information for ESV