We do not support Replacement Theology.
The Covenant of Moses was unique, a singular example of God choosing one nation as His sole representatives on earth. Their mission was to exhibit His revelation, to breathe life into it by living it. The covenant came with promises that were an extension of Noah’s Covenant, but added in a special status that granted them the best and most direct revelation of God and His ways. This covenant was restricted to this one nation.
The Covenant of Noah was not exclusive. It does offer the same basic promises of shalom, but there is no special family status with God. There is no promise of direct revelation and the bar is higher for maintaining a claim on the promises of shalom.
Israel had a special advantage in that, while their covenant was most assertively conditional, their status with God as family made it much harder for Him to sever ties. Nonetheless, the covenant flatly states those ties could be broken. Israel did so; the final break was rejecting the Messiah. Jesus’ execution symbolized the vast chasm separating them from God, that they had moved so very far away that they were no longer His family.
The New Covenant in Christ was unlike either of the two primary Law Covenants. Instead of an identity that was rooted in this world, the primary source of the Covenant is otherworldly. It has nothing to do with politics in that sense. There can be no “Christian nation;” it perverts the meaning of “Christian.” Instead, there can surely be nations who embrace Noah’s Covenant as their Law, which is subsumed under Christ. But Noah merely manifests Christ; it is not Christ.
So it’s not possible for Christians to replace Israel in terms of earthly status. We belong to the Kingdom of Heaven. Jesus said, “My kingdom is not of this world” (John 18:36).