In recent months I've found myself taking the accusation against evangelical denominations much more seriously. After all, Ephesians 4 does say the following:
Ephesians 4:11–15 - And he gave some, apostles; and some, prophets; and some, evangelists; and some, pastors and teachers; For the perfecting of the saints, for the work of the ministry, for the edifying of the body of Christ: Till we all come in the unity of the faith, and of the knowledge of the Son of God, unto a perfect man, unto the measure of the stature of the fulness of Christ: That we henceforth be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, and cunning craftiness, whereby they lie in wait to deceive; But speaking the truth in love, may grow up into him in all things, which is the head, even Christ:
Denominationalism is a blight. It shouts disunity. It's embarrassing to see. Denominations aren't the result of the church as a whole becoming godly, but the presence of aberrations. Christ's prayer in John 17 is for the church to be one. Yes, all true believers love one another regardless of stripe, yet how can that prayer not apply to visible unity as well? It rather seems like denominations happen because someone doesn't hold onto the truth, doesn't want to know it, or conflicts are dealt with in an ungracious and unloving fashion. In other words, lack of oneness. Not the ambition of Ephesians 4. As one friend has said, Judgment Day will reveal that many church splits and denominational formations were unnecessary.
Paul's ambition is that we speak the truth in love, thus grow into Christ, our head. Under the heading of truth, our agreement in particulars as well as generalities ought to increase, and our love for one another ought to likewise increase. But I think if we had much more of the latter, there'd be fewer splits, fewer contentions, much more give-and-take in our theological and practical deliberations, more willingness to admit where we are wrong, more inclination to listen, and in that way come nearer to manifesting ourselves as one body in Christ. And we would actually show ourselves to be visibly one. I think it's something that the church ought to work towards and pray for. In New Covenant times with such a promise of the Spirit, I don't think it should be excluded as impossible or even unlikely that there should actually be far fewer than actually are.