Let’s explore peace a bit more.
88. Peacemakers truly “make” peace; they build peace and friendship in society. To those who sow peace Jesus makes this magnificent promise: “They will be called children of God” (Matthew 5:9).
Peace is something to share. Presumably, the early disciples were also about bringing peace, not just greeting with the sentiment.
He told his disciples that, wherever they went, they were to say: “Peace to this house!” (Luke 10:5).
Peace was important to the early Church, as Paul and James attest:
The word of God exhorts every believer to work for peace, “along with all who call upon the Lord with a pure heart” (cf. 2 Timothy 2:22), for “the harvest of righteousness is sown in peace by those who make peace” (James 3:18). And if there are times in our community when we question what ought to be done, “let us pursue what makes for peace” (Romans 14:19), for unity is preferable to conflict.*
* At times, it may be necessary to speak of the difficulties of a particular brother or sister. In such cases, it can happen that an interpretation is passed on in place of an objective fact. Emotions can misconstrue and alter the facts of a matter, and end up passing them on laced with subjective elements. In this way, neither the facts themselves nor the truth of the other person are respected.
Pope Francis raises a good topic: difficult people. We can ask ourselves if a lack of peace is sourced in an outside opinion. I’ve been new to church communities a few times. I’ve tried to pay very little attention to comments made about others. First, I’m more interested in getting to know the person with whom I’m speaking. Gossip and such can be more revealing about the source than the object.
Even in established relationships, it is possible to get caught up in emotions that distort our sight. There are few things more pleasing than moving past difficulties and establishing a more trusting friendship. Such a thing is of the peacemaking the Lord praises in his Sermon on the Mount.
You can check the full document Gaudete et Exsultate on the Vatican website.