Premillennialists say that in the Millennium the law of Moses will be instituted again and the Mosaic system of temple sacrifices and festivals will be the basis
This goes against a fundamental idea in the New Testament particularly in the letter to the Hebrews. The idea is this: the realities foreshadowed by the Mosaic law, tabernacle, priesthood, and festivals, were "shadows of good things to come"
This New Testament doctrine raises the obvious question: why return to the shadows
Which is the better covenant? The old or the new? It is of course the new. Jesus is now the "mediator of a better covenant enacted on better promises"
The Hebrew writer says, "When he said, 'a new covenant', he has made the first obsolete. But whatever is becoming obsolete and growing old is ready to disappear."
When Christ died on the cross, that old covenant did disappear, in the sense that it was no longer recognised by God. God "nailed it to the cross"
Which is the better tabernacle? The earthly or the heavenly? It is of course the heavenly. Why then teach that the earthly physical, mere copy is going to be rebuilt and that Jesus is going to leave the true, spiritual tabernacle in heaven and enter instead
Christ is now in heaven in the true tabernacle which is a more perfect and greater tabernacle. The earthly tabernacle and temple, beautiful as they were,
Shall Christ leave the perfect temple in heaven for a mere shadow of it on earth? No, and where we read in the prophets about the physical temple we understand
Which is the better priesthood? The Levitical earthly priesthood or the more excellent spiritual priesthood of Christ? It is undoubtedly the spiritual priesthood. Why then teach that the earthly Levitical priesthood
The Hebrew writer holds that the earthly priesthood, like the earthly tabernacle, was a copy and shadow of heavenly things. Christ has obtained "a more excellent ministry" than the earthly priesthood
Which is the better feast? The feasts and celebrations of the old covenant or the simple memorial supper which Jesus instituted at the Passover just before he died on the cross?
Which is the better sacrifice? The animal sacrifices of old or the death of Christ on the cross which the Lord’s Supper commemorates? There is no question that Christ’s death is the perfect sacrifice, once and for all. What is the purpose, therefore, in bringing back the slaughter and bloodshed of animals? Animal sacrifices could never take away sins, but the blood of Jesus enabled sins to be taken away once and for all