I am a member of a senior adult Sunday School, Bible Study, Small Group Class (meet prior to Sunday Morning Worship) and recently in the absence of the regular teacher, a retired missionary was ask to substitute as the teacher. He taught the lesson on the doctrine of election and did what I thought was a good job based on my knowledge of the scriptures.Immediately after the class he along with his wife were subjected not only some severe criticism but with some simply unkind and unchristian remarks by members of the class. This naturally was of much concern to the substitute teacher who the following week met with the pastor and related to him the lesson he had taught. The pastors remarks were this "You gave them meat instead of milk". to which the teacher replied "Well what should I do if asked to teach again"? The pastors reply was "give them milk". The question is should we teach only the "core doctrines" and stay away from the peripheral ones? In a class of 40 you are going to have all levels of biblical understanding. I would naturally be interested in some of the pastors opinions and remarks regarding this.