It strikes me that a lot of the practical matters discussed in the New Testament letters are about conflict resolution in one way or another.
The letters might be addressing: social conflict (reconciling divisions, enduring persecution, loving one another, practicing hospitality), sexual conflict (infidelity, care within marriage), financial conflict (lawsuits, freeloading, giving generously), verbal conflict (quarreling over disputable matters, gossip), or even internal conflict (double mindedness), but a lot of the practical teaching is about conflict and its resolution or avoidance altogether.
Which gets me reflecting on how we Christians conduct ourselves online. Especially when we come into disagreement over ethics and politics. The more I learn the more I realize I have more to learn. How we speak to one another is possibly more important at times than what we say to one another.