Numbers 14:36-37

14:36 The men whom Moses sent to investigate the land, who returned and made the whole community murmur against him by producing an evil report about the land, 14:37 those men who produced the evil report about the land, died by the plague before the Lord.

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.”

Matthew 23:13

23:13 “But woe to you, experts in the law and you Pharisees, hypocrites! You keep locking people out of the kingdom of heaven! For you neither enter nor permit those trying to enter to go in.