Hebrews 3:8-9

3:8 “Do not harden your hearts as in the rebellion, in the day of testing in the wilderness.

3:9 “There your fathers tested me and tried me, and they saw my works for forty years.

Hebrews 3:15-19

3:15 As it says, “Oh, that today you would listen as he speaks! Do not harden your hearts as in the rebellion.” 3:16 For which ones heard and rebelled? Was it not all who came out of Egypt under Moses’ leadership? 3:17 And against whom was God provoked for forty years? Was it not those who sinned, whose dead bodies fell in the wilderness? 3:18 And to whom did he swear they would never enter into his rest, except those who were disobedient? 3:19 So we see that they could not enter because of unbelief.