And this is further confirmed by the language of the Apostle Paul: Until we all come in the unity of the faith to a perfect man, to the measure of the stature of the fullness of Christ. And in keeping with this is the declaration of the same apostle, when he exhorts us, who even in the present life are placed in the Church, in which is the form of that kingdom which is to come, to this same similitude of unity: That you all speak the same thing, and that there be no divisions among you; but that you be perfectly joined together in the same mind and in the same judgment. (Book I, Chapter 6, Part 2)

Origen is quoting from the opening of Paul's letter to the church at Corinth.

In the twelfth chapter of the same letter the Apostle writes:

The body is a unit, though it is made up of many parts; and though all its parts are many, they form one body. So it is with Christ.For we were all baptized by one Spirit into one body—whether Jews or Greeks, slave or free—and we were all given the one Spirit to drink.

Now the body is not made up of one part but of many.If the foot should say, “Because I am not a hand, I do not belong to the body,” it would not for that reason cease to be part of the body. And if the ear should say, “Because I am not an eye, I do not belong to the body,” it would not for that reason cease to be part of the body. If the whole body were an eye, where would the sense of hearing be? If the whole body were an ear, where would the sense of smell be? But in fact God has arranged the parts in the body, every one of them, just as he wanted them to be. If they were all one part, where would the body be? As it is, there are many parts, but one body.

The eye cannot say to the hand, “I don’t need you!” And the head cannot say to the feet, “I don’t need you!” On the contrary, those parts of the body that seem to be weaker are indispensable, and the parts that we think are less honorable we treat with special honor. And the parts that are unpresentable are treated with special modesty, while our presentable parts need no special treatment. But God has combined the members of the body and has given greater honor to the parts that lacked it, so that there should be no division in the body, but that its parts should have equal concern for each other. If one part suffers, every part suffers with it; if one part is honored, every part rejoices with it.

Now you are the body of Christ, and each one of you is a part of it. And in the church God has appointed first of all apostles, second prophets, third teachers, then workers of miracles, also those having gifts of healing, those able to help others, those with gifts of administration, and those speaking in different kinds of tongues. Are all apostles? Are all prophets? Are all teachers? Do all work miracles? Do all have gifts of healing? Do all speak in tonguesd? Do all interpret? But eagerly desire the greater gifts.

I understand the intent of God to be that the righteousness of each is as important as the justice of all. Unity does not obscure diversity, but celebrates it.