Jesus came to fulfill the law for those that would receive Him by faith through the Blood. The Millennial kingdom will be run under the rules of the kingdom -- the sermon on the mount et al.
Lost people during the Millennium will need a way to approach and appease the King.
The Blood of Christ 'appeased' the King (see
propitiation).
ONE sacrifice, for all sin, for all time:
8 When he said above, “You have neither desired nor taken pleasure in sacrifices and offerings and burnt offerings and sin offerings” (these are offered according to the law), 9 then he added, “Behold, I have come to do your will.” He does away with the first in order to establish the second.10 And by that will we have been sanctified through the offering of the body of Jesus Christ once for all.
11 And every priest stands daily at his service, offering repeatedly the same sacrifices, which can never take away sins. 12 But when Christ had offered for all time a single sacrifice for sins, he sat down at the right hand of God, (from Heb. 10)
All other Scripture and theologies must be viewed through the lens of the finished work and Perfect, Permanent High Priesthood of Christ.
Since Christ's High Priesthood is permanent, as the Scriptures say, and there is only ONE advocate between man and God, as the Scriptures also say, then a future Levitical priesthood is OUT.
23 Now there have been many of those priests, since death prevented them from continuing in office; 24 but because Jesus lives forever, he has a permanent priesthood. 25 Therefore he is able to save completely those who come to God through him, because he always lives to intercede for them. (from Hebrews 7)
5 For there is one God, and there is one mediator between God and men, the man Christ Jesus, 6 who gave himself as a ransom for all, which is the testimony given at the proper time.
Since the Levitical priesthood is never coming back (because there is one mediator between God and man, and that is Christ Jesus), then you who believe there are sacrifices in the future would have to imagine Christ officiating over offerings for sins He already died for.
Either Christ's Perfect, Permanent High Priesthood is, or it is not. Scripture says it is. Therefore any
interpretation or
theological structure derived from other Scriptures which seem to contradict that immovable truth must be reevaluated.
-JGIG