The spy them who brought bad report was not having faith (Nu 13:​31-33; 14:11)

Because they were not having faith they discourage their brother them (Nu 14:​1-4)

The spy them who were brave was having strong faith (Nu 14:​6-9; w06-E 10/1 16-17 ¶5-6)

The Israelite them knew that Jehovah been helping them. So it suppose to make them to trust Jehovah that he will help them to take over Canaan.