“And the glory which You gave Me I have given them, that they may be one just as We are one” (John 17:22).
The building of the tabernacle and the establishment of the priesthood in Israel foreshadowed the Christian church. By studying these passages in the Old Testament, we can learn a great deal about the church in the new dispensation. Therefore, we will take a detour from our studies of Exodus and examine the doctrine of the church in closer detail.
In Jesus’ high priestly prayer in John 17, He prayed that the church be one. Because the Father and the Son are one, the church is called to reflect that unity. Jesus prayed that the church would remain unified, without fragmentation and division. Now, we know that Christ’s prayers are not frustrated, and yet the church is highly fragmented today, divided over countless issues. Therefore, we must ask ourselves, “What is the church?” Four guidelines for our understanding of the church are that it is one, holy, catholic, and apostolic.
First, let us consider what it means to be one. There are more than two thousand varieties of Protestant churches in the United States. In the sixteenth century, the schism that broke the church in the Reformation created this kind of fragmentation. The Roman Catholic Church warned the Reformers that putting the Bible into the hands of laymen without the oversight of church authority would open a floodgate of iniquity. The Reformers agreed that this was a risk, but they were willing to take that risk for the sake of upholding the doctrine of the priesthood of all believers. But the Reformers themselves were quick to say that this priesthood did not advocate theological mavericks. They insisted that laymen were to remain under the authority of the church and to be instructed by those who were called to be teachers and pastors in the church.
Some try to solve the problem of the fragmentation of the church by calling for ecumenism. But this kind of plurality is a shallow solution because it allows for a wide range of viewpoints to coexist within a single body. This undermines the purity of the church for the sake of unity—something that the Bible does not support. Oneness should not be sought in ecumenism—in unity for unity’s sake—for when we sacrifice doctrine for the sake of unity, we are not acting like the true church of Christ.
Paul insists that the church be of one mind. This goes against the grain of radical ecumenism, which allows for a variety of equal opinions and viewpoints. We are not only called to be unified structurally, but fundamentally. Can there be true unity where there are fundamental differences in doctrine?