Mosiah 10:12

they were a wild, and ferocious, and a blood-thirsty people, believing in the tradition of their fathers, which is this: Believing that they were driven out of the land of Jerusalem, because of the iniquities of their fathers, and that they were wronged in the wilderness by their brethren; and they were also wronged, while crossing the sea.

They were wild, mean, and violent people. They believed the stories their fathers told them. They believed they were forced to leave Jerusalem because their fathers did bad things. They thought their brothers treated them badly in the wilderness and on the sea.

They were wild, fierce, and bloodthirsty people, living by the stories their ancestors had passed down to them. Those stories went like this: They believed they’d been driven out of Jerusalem because their ancestors had done wrong, and that their own family had mistreated them in the wilderness and again while crossing the ocean.