Healthy churches have explicit pre-commitments in what they believe (confession), how they live together (covenant), and how they are governed (constitution). Of course there is more that constitutes a healthy church, but I would argue it is critical from the outset that a church make clear these commitments based on the Word of God.
I’m grateful to belong to a covenant community seeking to honor the commitments we have made to one another. As a community formed by the gospel, we seek to live together as repenters and believers. This important to remember when it comes to living out our covenant commitments because no one of us grounds our identity based on our sanctification or our ability to keep those commitments perfectly. Even the commitments themselves speak to this. For instances, God commands that we forgive one another as God in Christ has forgiven us. That assumes that we live in such proximate intimacy that we are going to sin against one another and be offended/hurt by one another (the Bible expects this). The proper response (which the Bible expects also) is to lovingly engage the one who has hurt/offended us and seek gospel reconciliation by making peace through repentance and forgiveness. Others include bearing one another’s burdens (context is addressing a sinning brother) and loving in ways that records of wrongdoings are not upheld and hoping all things at all times is applied.
This is important to remember because we are in danger of misunderstanding grace-based church covenant and making it into a condition-binding contract. In a church contract, when the conditions are not met by other members in our church community, you feel that you are justified in leaving that congregation in pursuit of a more perfect community. The irony to such a response is that such a response is a sinful reaction that dishonors the gospel. The person may feel justified in leaving because their feelings were hurt or was sinned against, but such justification has nothing to do with living in light of our justification by faith in Christ.
How many people have left their church family because they got upset with someone and could not do Scripture tells us to do? How many people have left because their feelings were hurt, the preacher stepped on their toes, another member failed to show sympathy and concern in a moment of crisis, and so on? How many churches were started not as a new work but as a sin-laden schism because blessed peacemaking seemed beyond the reach of those harboring resentment, fear of man, and self-pity?