Driven by grace?

In fact, if your small groups, journey groups, life groups, Sunday school classes, Adult Bible Fellowships, or whatever you call them are not centered on the common need for and common experience of grace, then they are actually doing more harm than good to the gospel movement. If groups are not gospel -centered and gospel-fueled, they are merely a social outlet for people, and they lack the power for transformation.

Chandler, Matt; Geiger, Eric; Patterson, Josh (2013-11-26). Creature of the Word: The Jesus-Centered Church (Kindle Locations 860-863). B&H Publishing Group. Kindle Edition. 

The authors continually pound upon the theme of gospel centeredness, and the idea that anything less is not acceptable to God. Grace, and our need for grace is what should drive us, it is the great equalizer. It is what makes the great speaker in complete fellowship with the stutterer, and the ones filled with an amazing gift of teaching in complete fellowship with those who just know that Jesus loves them. It is what binds the elderly man in his white shirt and tie to the young man in jeans who occasionally has to step outside for a quick smoke. It binds the soccer mom to the teen with a little baby. If we are not driven by grace, we quickly become a community divided. Or worse yet, a community isolated.