In contrast to the resurrection which comes to all regardless of their individual effort, the doctrine of redemption from sin is contingent upon faith in Christ. He will not redeem the wicked from spiritual death if they will not believe in his name. This is a fundamental doctrine which is so often misunderstood in Christianity.
"This is an important principle which must be viewed properly in order to avoid confusion. There are persons who teach that Christ suffered only for those who will repent. This is false. It is incorrect. The Lord suffered for every soul, 'yea, the pains of every living creature, both men, women, and children, who belong to the family of Adam' (2 Nephi 9:21; see also D&C 18:11; D&C 19:16). His suffering and atonement are efficacious, however, only for those who repent and come unto him. Thus to refuse to repent is to mock his pain and shun his sufferings. It is, in the words of Paul, to do 'despite unto the spirit of grace' (Hebrews 10:29)." (McConkie and Millet, Doctrinal Commentary on the Book of Mormon, vol. 3, p. 77)