1 Corinthians 12:12-27 12 For just as the body is one and has many members, and all the members of the body, though many, are one body, so it is with Christ. 13 For in one Spirit we were all baptized into one body—Jews or Greeks, slaves or free—and all were made to drink of one Spirit.
14 For the body does not consist of one member but of many. 15 If the foot should say, “Because I am not a hand, I do not belong to the body,” that would not make it any less a part of the body. 16 And if the ear should say, “Because I am not an eye, I do not belong to the body,” that would not make it any less a part of the body. 17 If the whole body were an eye, where would be the sense of hearing? If the whole body were an ear, where would be the sense of smell? 18 But as it is, God arranged the members in the body, each one of them, as he chose. 19 If all were a single member, where would the body be? 20 As it is, there are many parts, yet one body.
21 The eye cannot say to the hand, “I have no need of you,” nor again the head to the feet, “I have no need of you.” 22 On the contrary, the parts of the body that seem to be weaker are indispensable, 23 and on those parts of the body that we think less honorable we bestow the greater honor, and our unpresentable parts are treated with greater modesty, 24 which our more presentable parts do not require. But God has so composed the body, giving greater honor to the part that lacked it, 25 that there may be no division in the body, but that the members may have the same care for one another. 26 If one member suffers, all suffer together; if one member is honored, all rejoice together.
27 Now you are the body of Christ and individually members of it.
AlLso read Revelation chapters 2 & 3. The letters from Jesus addressed individual churches in separate cities, each with their own partiuclar strengths and weaknesses. There is NOTHING in those letters that refers to or appeals to a central authority. And THAT is NT church history.
Except for the implicit understanding the CHRIST is the authority and the same implicit understanding that his designates are similarly authorized.
I never cease to be amazed at the "heads I win, tails you lose" interpretations of Protestant quasi-scholars.
They misapply scriptures as badly as any pharisee, and call it "biblical," (bearing more than a little resemblance to the accusation of "harvesting on the Sabbath" laid on the apostles) then willfully deny scriptures like Matthew 16:18 with "interpretations" that are nowhere authorized in that same bible.