Scriptures, directly and by inference, tell us the Church was meant to be one, in full accord and of one mind and judgment, and that includes doctrinal teachings. Nowhere does scripture tell us to be of one accord on “essentials”.
**Joh 10:16 And I have other sheep, that are not of this fold; I must bring them also, and they will heed my voice. So there shall be one flock, one shepherd.
Eph 4:3 eager to maintain the unity of the Spirit in the bond of peace.
Eph 4:4 There is one body and one Spirit, just as you were called to the one hope that belongs to your call,
Eph 4:5 one Lord, one faith, one baptism,
Eph 4:6 one God and Father of us all, who is above all and through all and in all.
Rom 16:17 I appeal to you, brethren, to take note of those who create dissensions and difficulties, in opposition to the doctrine which you have been taught; avoid them.
1Co 1:10 I appeal to you, brethren, by the name of our Lord Jesus Christ, that all of you agree and that there be no dissensions among you, but that you be united in the same mind and the same judgment.
Php 2:2 complete my joy by being of the same mind, having the same love, being in full accord and of one mind.
Rom 15:5 May the God of steadfastness and encouragement grant you to live in such harmony with one another, in accord with Christ Jesus,
Rom 15:6 that together you may with one voice glorify the God and Father of our Lord Jesus Christ.
Joh 17:17 Sanctify them in the truth; thy word is truth.
Joh 17:18 As thou didst send me into the world, so I have sent them into the world.
Joh 17:19 And for their sake I consecrate myself, that they also may be consecrated in truth.
Joh 17:20 "I do not pray for these only, but also for those who believe in me through their word,
Joh 17:21 that they may all be one; even as thou, Father, art in me, and I in thee, that they also may be in us, so that the world may believe that thou hast sent me.
Joh 17:22 The glory which thou hast given me I have given to them, that they may be one even as we are one,
Joh 17:23 I in them and thou in me, that they may become perfectly one, so that the world may know that thou hast sent me and hast loved them even as thou hast loved me.
1Co 12:13 For by one Spirit we were all baptized into one body–Jews or Greeks, slaves or free–and all were made to drink of one Spirit.
Rom 12:4 For as in one body we have many members, and all the members do not have the same function,
Rom 12:5 so we, though many, are one body in Christ, and individually members one of another.
Eph 4:4 There is one body and one Spirit, just as you were called to the one hope that belongs to your call,
Col 3:15 And let the peace of Christ rule in your hearts, to which indeed you were called in the one body. And be thankful.**