If doing everything "by the book" were the key to being a vibrant church, the believers in Ephesus would be a model congregation. Jesus, however, holds them to a higher standard. "But I have this against you," he says, "that you have lost the love you had at first."
Ephesus is the church that forgot to love. Jesus admonishes the believers to "Remember therefore from where you have fallen; repent, and do the works you did at first. If not, I will come to you and remove your lampstand from its place unless you repent."
Truth divorced from love is legalistic, judgmental, and cruel. Indeed, there is no church more spiritually dead than the church which does the right thing for the wrong reason. Chasing off false apostles is certainly not wrong in and of itself, but defensiveness cannot take the place of love as the defining characteristic of the church. Love compels the church not only to drive out the wolves, but also to seek out and bring home the lost sheep.