Eph 4:3 eager to maintain the unity of the Spirit in the bond of peace.
There are certain things that require effort to push through anything that works against it. As it’s been said, you be or become the change you want to see in the world, and that requires heart and work.
The seat of Christian unity is in the heart or spirit, and the nature of that unity which the apostle prescribes is of the Spirit. That is, a spiritual union: there is a union between God and His people, and between Christ and His members, and between saints and saints, and the bond of each union is love.
To be eager to maintain is to constantly be in communion with the Trinity for therein is the passion birthed, strength gained and preservation sustained. The saints are united under one head, and are members of one and the same body, and should be of the same mind and judgment, and of one accord, heart, and affection.
In order to maintain this unity, Paul gives it to us in summary in this chapter, “Be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you” (Eph 4:32). The unity of the Church, as the body of Christ, is already made and prayed for (John 17); but it is for us to maintain it. The bond of peace is love and love is a doing word.