Evidence

Nephi Chapter 7 - Ishmael's Family Defends Nephi after he speaks the truth 

18 And it came to pass that when I had said these words, behold, the bands were loosed from off my hands and feet, and I stood before my brethren, and I spake unto them again.

19 And it came to pass that they were angry with me again, and sought to lay hands upon me; but behold, one of the daughters of Ishmael, yea, and also her mother, and one of the sons of Ishmael, did plead with my brethren, insomuch that they did soften their hearts; and they did cease striving to take away my life.

Evidence does not prove religious truths. But evidence, and a soft heart, can help bring a witness by the Holy Ghost.