Alma 18:5

Now this was the tradition of Lamoni, which he had received from his father, that there was a Great Spirit. Notwithstanding they believed in a Great Spirit, they supposed that whatsoever they did, was right; nevertheless, Lamoni began to fear exceedingly, with fear lest he had done wrong in slaying his servants:

Lamoni had learned from his father that there was a Great Spirit. Even though they believed in a Great Spirit, they thought that whatever they did was right. But Lamoni began to be very scared. He was afraid that he had done wrong in killing his servants.