The importance of consistent literalism to the dispensationalist cannot be overstated. Dispensationalists like to argue that consistent literalism is their first principle and that the dichotomy and parenthesis theories logically follow from the application of this first principle to the study of Scripture. I believe that the reality is the reverse: dispensational interpretation uses the degree of literalism necessary to interpret prophecy in terms of the dispensational dichotomy and parenthesis assumptions. Beyond this, differing degrees of figurativeness and literality can be found in dispensational interpretations.…
The passage most commonly mentioned in discussions of the difficulty presented by dispensational literalism is Ezekiel's temple vision (Ezekiel 40-48). The dispensationalists are looking for a reinstitution of bloody animal sacrifices in a millennial temple built in accordance with the description found in this passage. Dispensationalists are careful to specify that these sacrifices are merely memorials of Christ's death and will be the millennial equivalent of the Lord's Supper. The problem with this is that Ezekiel's vision refers to these sacrifices as literally making atonement (Ezekiel 45:15,17,20; Hebrew: kaphar, atone). Of course, a dispensationalist can go to the book of Hebrews to prove that animal sacrifices in the Old Testament never literally atoned for sin (Hebrews 10:4). When the Reformed theologian, however, goes to Hebrews to prove that animal sacrifices were done away forever by Christ's once for all offering (Hebrews 10:10-18), then that is "theological interpretation" and "reading the New Testament back into the Old Testament," two practices which dispensationalists routinely criticize.
(Grover Gunn, Dispensationalism: Consistent Literalism)
>>Dispensationalists are careful to specify that these sacrifices are merely memorials of Christ’s death and will be the millennial equivalent of the Lord’s Supper.<<
They are not “merely memorials of Christ’s death” to the last seven years of God’s covenant with the Jews. When the “age of the Gentiles” ends the Jews will be dealt with as they were before Christ’s death and resurrection. It’s at the end of the seven year Tribulation period that all sacrifice will end for all people. The Jews will then accept Jesus as the Messiah and King.