We have been adopted as daughters and sons of God, and placed under his grace.The Holy Spirit creates unity among believers.

In the first three chapters of Ephesians, Paul described how God has treated us wonderfully well. We have been adopted as daughters and sons of God, and placed under his grace. Privilege after privilege has been given to us. Paul stated that we should give a worthwhile response to such noble treatment.

I, therefore, the prisoner of the Lord, entreat you to walk in a manner worthy of the calling with which you have been called, 2 with all humility and gentleness, with patience, showing forbearance to one another in love, 3 being diligent to preserve the unity of the Spirit in the bond of peace (Ephesians 4:1-3).

Notice how subjective this response should be. It is characterized by inner emotional states and perspectives. Gentleness, patience, and love are some of the characteristics that should be present in our lives. If they are, we can then preserve the unity that the Spirit is creating among believers with the chain or bond of peace. A bond or chain is something that holds things together. The links of this chain are positive emotions and healthy perspectives on other believers.