I have always found it helpful to hear others share their understanding of the Gospel in their own unique way. Perhaps I might hear a focus or a discover a point I hadn't even thought about or considered of the actually message or of the implications of this Gospel. By hearing others share, I might just glean a nugget of truth I myself might gladly incorporate into my own presentation of the Gospel for those I encounter. of course, if not for any other reason, the hearing of the Gospel from different perspectives allows me to get a deeper grasp of the truths I have already embraced.