NEW TESTAMENT: Ephesians 4: 1 - 16 (RCL)
Ephesians 4: 1 - 6 (Can. BAS)

Ephe 4:1 (NRSV) I therefore, the prisoner in the Lord, beg you to lead a life worthy of the calling to which you have been called, 2 with all humility and gentleness, with patience, bearing with one another in love, 3 making every effort to maintain the unity of the Spirit in the bond of peace. 4 There is one body and one Spirit, just as you were called to the one hope of your calling, 5 one Lord, one faith, one baptism, 6 one God and Father of all, who is above all and through all and in all.
7 But each of us was given grace according to the measure of Christ's gift. 8 Therefore it is said,
"When he ascended on high he made captivity itself a captive;
he gave gifts to his people."
9 (When it says, "He ascended," what does it mean but that he had also descended into the lower parts of the earth? 10 He who descended is the same one who ascended far above all the heavens, so that he might fill all things.) 11 The gifts he gave were that some would be apostles, some prophets, some evangelists, some pastors and teachers, 12 to equip the saints for the work of ministry, for building up the body of Christ, 13 until all of us come to the unity of the faith and of the knowledge of the Son of God, to maturity, to the measure of the full stature of Christ. 14 We must no longer be children, tossed to and fro and blown about by every wind of doctrine, by people's trickery, by their craftiness in deceitful scheming. 15 But speaking the truth in love, we must grow up in every way into him who is the head, into Christ, 16 from whom the whole body, joined and knit together by every ligament with which it is equipped, as each part is working properly, promotes the body's growth in building itself up in love.

Ephesus had been part of the Roman Empire for over a century.
It was a city second only to Rome in size, almost 500,000 inhabitants.
The large temple of Artemis generated jobs for local statue makers and Paul caused some controversy among them Acts 19:23-41)
There is no report of a dispute between Paul and the church of the Ephesians.
There was an apparent dispute between Jews who thought all Christians should become Jews first and adopt Jewish habits, versus Gentiles who wanted to worship Christ without becoming Jews.
The first 3 chapter of Ephesians discusses God’s work. You do nothing. God insists we believe, you have an eternal life, a resurrection.
Chapter 4 begins with therefore
Therefore begins a call to action to preserve unity.
We all have different jobs until the church is unified, and all believe.
We must avoid trickery and deceitful scheming, unusual or alternate theology.
Instead we must grow together, each using our individual gift, in love.