We see that belief leads to results. When we truly believe, we change—we want to repent and do good. Samuel is a powerful additional witness to the truth of the testimony of Nephi and his brother Lehi. Nephi, son of Lehi, had long before articulated the doctrine of multiple witnesses (see 2 Nephi 11:2–3). The Savior has expressed it thus: “In the mouth of two or three witnesses every word may be established” (Matthew 18:16). The Book of Mormon itself is “Another Testament of Jesus Christ.” Many in the audience of Samuel the Lamanite have already heard the witness of Nephi and Lehi, and now this further witness persuades them to take action by repenting and coming unto Christ. But many in Samuel’s audience have already rejected the words of Nephi and Lehi and now harden their hearts against Samuel. How perilous is the fate of those who reject not just one, but multiple testimonies of the divinity of the plan of salvation.