"he should discuss his living faith, trust and love of Christ; his desire to grow in sanctity and conformity to Christ; and his total dependence on Christ for salvation."
IF...
... we had more of the above type of discussion...
THEN...
... we might have less of the "other" types of discussion (that none of us really like), and which in most cases devolves into sinful, angry, arrogant, spiteful arguing.
This would be easy to do if talked about how God touches our lives. I bet every one of us who gets caught up in these discussions can truthfully say, "Jesus is Lord!" and mean it whole-heartedly.
Hope you aren't including me in there. It has never been my policy to attack other christians.