'And fear not them which kill the body, but are not able to kill the soul: but rather fear him which is able to destroy both soul and body in hell.' (Matt 10:28)
'Behold, I speak with boldness, having authority from God; and I fear not what man can do; for perfect love casteth out all fear.' (Moroni 8:16)
'For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.' (Romans 1:16)
"Let us recognize that fear comes not of God, but rather that this gnawing, destructive element comes from the adversary of truth and righteousness. Fear is the antithesis of faith. It is corrosive in its effects, even deadly." (Commentaries on Isaiah in the Book of Mormon, ed. by K. Douglas Bassett, [American Fork, UT: Covenant Publishing Co., 2003], 39)
Gordon B. Hinckley
"When I went on a mission, my father gave me a little card with a verse from the New testament, the words of the Lord to the centurion servant who brought news concerning the little daughter of the centurion. Those words, 'be not afraid, only believe.' I commend those words to each of us, my brothers and sisters. You do not need to fear if you are on the side of right." (Commentaries on Isaiah in the Book of Mormon, ed. by K. Douglas Bassett, [American Fork, UT: Covenant Publishing Co., 2003], 40)