Ephesians 4: 1-16.
In John 13:35 we have the words of Jesus declaring: “This is how everyone will know that you are my disciples: if you love one another”. That happens through unity.
In his commentary on Ephesians in the Bible Speaks Today series, John Stott helps us understand from Ephesians 4 how unity depends on the quality of our conduct (vs. 2); arises from the unity of our God (vs. 3-6); is enriched by the diversity of our gifts (vs. 7-12); depends on the maturity of our growth (vs. 13-16)