Numbers 32:9

32:9 When they went up to the Eshcol Valley and saw the land, they frustrated the intent of the Israelites so that they did not enter the land that the Lord had given them.

Deuteronomy 1:28

1:28 What is going to happen to us? Our brothers have drained away our courage by describing people who are more numerous and taller than we are, and great cities whose defenses appear to be as high as heaven itself! Moreover, they said they saw Anakites there.”

Joshua 14:8

14:8 My countrymen who accompanied me frightened the people, but I remained loyal to the Lord my God.

Hebrews 3:19

3:19 So we see that they could not enter because of unbelief.