“People don’t become committed church members—and therefore healthy Christians—because they don’t understand that such a commitment is precisely how God intends his people to live out the faith and experience Christian love…a healthy Christian is one who is committed to expressing love toward other Christians (John 13:34-35). And the best place for Christians to love this way is ‘as covenant members’ in the assembly of God’s people called the local church. It is no wonder then that the author of Hebrews instructs us to “consider how to stir up one another to love and good works,” and then right away says “not neglecting to meet together, as is the habit of some, but encouraging one another, and all the more as you see the Day drawing near” (Hebrews 10:24-25)? ‘Church membership’ and faithful church attendance is associated tightly with stirring each other to love and good deeds. The local church is the place where love is most visibly and compellingly displayed among God’s people. It’s where the ‘body of Christ’ is most plainly represented in the world.”
-Thabiti Anyabwile, What is a Healthy Church Member?