Let's help each other. If everyone knows everybody in the group it is time to go get some new people and introduce them to the joy of the Christian life. We will return to this question later in the discussion. The whole last half of John takes place just before the crucifixion. Apparently they were a bit confused as well.
Many good novels have a plot and one or more sub-plots.
This question is a sub-plot to the main story of today's lesson. Don't spend too much time on it, but it is an interesting thing to think about. Also, always be open to the movement of the Holy Spirit in class to turn a sub-plot into a main plot. The testimonies of people in your group can lend confidence to those in the group who are going through something painful now. The operative word is convict which means to expose or make plain.