Redemption should not be confused with resurrection. The Book of Mormon prophets make it plain that the resurrection is universal—that all who are born into mortality will come forth in a resurrected state, having body and spirit inseparably united (see Alma 11:45; Alma 40:19-23).
In the full and complete sense of the word, however, not all are redeemed. Be it remembered that Lehi taught that “redemption cometh in and through the Holy Messiah.... unto all those who have a broken heart and a contrite spirit” (2 Nephi 2:6-7; italics added). Alma testified that Christ “cometh to redeem those who will be baptized unto repentance, through faith on his name” (Alma 9:27; italics added).
Nephi, son of Helaman, explained that though “the Lord surely should come to redeem his people.... he should not come to redeem them in their sins, but to redeem them from their sins.
And he hath power given unto him from the Father to redeem them from their sins because of repentance; therefore he hath sent his angels to declare the tidings of the conditions of repentance, which bringeth unto the power of the Redeemer, unto the salvation of their souls.” (Helaman 5:10-11.)
Thus, though the atonement of Christ brings a general redemption to all (that is, the resurrection), only those who so live as to return to the presence of the Father have been fully redeemed in the high spiritual sense.