One of the most striking, and indeed shocking, aspects of reading the Fourth Gospel as the primary and most authoritative source about Jesus- is that Jesus tells the disciples to propagate the faith as a 'family' of believers and says nothing about setting up a church.
To use the old German Sociological terminology: Christians ought to be a Gemeinschaft, not a Gesellschaft - a loving community, not an institutional society.
In a long section (Chapters 13-17*) describing the night before the crucifixion; Jesus instructs the disciples on the meaning of his teaching and what they should do after his departure. What he seems to be saying is that the disciples have (since the departure of Judas Iscariot) a mutually loving 'family'; and that future Christians should be the same.
The themes (here and elsewhere in the Fourth Gospel) are all about love between Christians; in effect, a group cohering by a web of love. Love cannot be imposed. A loving group can and does grow, as a family grows by marriage and children - but only one person at a time, and only by mutual consent. It is clear that this is the consent of friends, not of master and servant.
Is there then to be no structure to the Christian community? It is not explicit, but the structure of family is sustained throughout the Fourth Gospel - including that between Jesus and his Father. The family of Mary, Martha and Lazarus (who is himself the author of the Fourth Gospel) is a major feature of the Gospel; Mary's marriage to Jesus in indicated in three places; and Lazarus (Jesus's brother in law) is made the son of Jesus's Mother at the crucifixion.
I assume, therefore, that the Christian community would have the same kind of internal structure of authority as an ideal family.
What I take from this is that Jesus intended for his followers to be structured and operate like a loving family - a family that adopted new members, as well as marrying and procreating them.
 If ye abide in me, and my words abide in you, ye shall ask what ye will, and it shall be done unto you.
 Herein is my Father glorified, that ye bear much fruit; so shall ye be my disciples.
 As the Father hath loved me, so have I loved you: continue ye in my love.
 If ye keep my commandments, ye shall abide in my love; even as I have kept my Father's commandments, and abide in his love.
 These things have I spoken unto you, that my joy might remain in you, and that your joy might be full.
 This is my commandment, That ye love one another, as I have loved you.
 Greater love hath no man than this, that a man lay down his life for his friends.
 Ye are my friends, if ye do whatsoever I command you.
 Henceforth I call you not servants; for the servant knoweth not what his lord doeth: but I have called you friends; for all things that I have heard of my Father I have made known unto you.
 Ye have not chosen me, but I have chosen you, and ordained you, that ye should go and bring forth fruit, and that your fruit should remain: that whatsoever ye shall ask of the Father in my name, he may give it you.
 These things I command you, that ye love one another.
 If the world hate you, ye know that it hated me before it hated you.
 If ye were of the world, the world would love his own: but because ye are not of the world, but I have chosen you out of the world, therefore the world hateth you.
 Remember the word that I said unto you, The servant is not greater than his lord. If they have persecuted me, they will also persecute you; if they have kept my saying, they will keep yours also.