Though I am not a classical dispensationalist--which is a system of theology that recognizes distinct Divine stewardships--I do believe we see distinctions in the purposes of God involving people that are temporal. The temporal needs to be distinguished from the eternal. God can have a people for his purpose that is temporal, while from an eternal perspective, there is only one people of God. Israel was the people of God for His purposes in time. Israel being a distinct nation of people. Presently, the "Church" is the people of God for His purposes in time. The Church being believers of all nations. God will again restore Israel as a people and nation for His purposes in time. These distinct people groups are temporal for the Divine purpose in time. But eternally, there is only one people of God, which looks like the Church does now, because it consists of all believers, while Israel did not consist of all believers, though there may have been very few among the gentiles apart from Israel--not even every Israelite was a believer under the Mosaic law. It's no different than the fact that all believers are one in Christ, but they have different roles in their service to God. This also relates to the roles of men and women in this life which are debated: can women be in authority over a man, such as an elder? But I suppose that even in the final eternal state, there will be some distinction of roles among the people of God. That will have to do with rewards and how the world to come will function.
