What is an ABF?
Adult Bible Fellowship. It is a group of adults who gather together for a Bible or book study in the context of developing relationships.

What is the difference between an ABF versus a typical Sunday School class?
It may not be any different. The adults in the class are most often comprised of people in similar stages of life. Time is given for getting to know one another, sharing prayer requests, and  for social activities outside of class. This may define the group as different than what you have previously experienced in Sunday School. (One of our groups is multi-generational.)
 current classes listed