Joseph Smith taught: “The offering of sacrifice has ever been connected and forms a part of the duties of the Priesthood. It began with the Priesthood, and will be continued until after the coming of Christ.... These sacrifices, as well as every ordinance belonging to the Priesthood, will, when the Temple of the Lord shall be built, and the sons of Levi be purified, be fully restored and attended to in all their powers, ramifications, and blessings.
This ever did and ever will exist when the powers of the Melchizedek Priesthood are sufficiently manifest; else how can the restitution of all things spoken of by the Holy Prophets be brought to pass? It is not to be understood that the law of Moses will be established again with all its rites and variety of ceremonies; this has never been spoken of by the prophets; but those things which existed prior to Moses’ day, namely, sacrifice, will be continued.
It may be asked by some, what necessity for sacrifice, since the Great Sacrifice was offered? In answer to which, if repentance, baptism, and faith existed prior to the days of Christ, what necessity for them since that time?” (Teachings, pp. 172-73, italics added.) It may be that such a sacrifice, as a part of the restitution of all things, will be instituted one final time to point toward the great and last sacrifice of Jesus the Lamb (see Joseph Fielding Smith, Doctrines of Salvation 3:94; Bruce R. McConkie, Mortal Messiah 1:128).