Unity between Christians, in a church, in a family, in a team, is almost never given automatically. It must be maintained — that is the word Paul uses. Which presupposes an effort, an eager labor that he assumes. Peace is not the absence of differences; it is the patient work of keeping what unites despite what could divide.
A word held back rather than thrown, a forgiveness offered before being asked, a step taken toward the brother rather than a withdrawal into your own wound. It is not comfortable, and that is precisely why it is promised as a work God blesses. To labor for peace is to walk in the footsteps of Christ.
“Eager to maintain the unity of the Spirit in the bond of peace.”
Ephesians 4:3