Be sure that you don’t believe that you are the “true teacher.” That is a serious mistake… Be careful you do not get in the way. The major role of a teacher is to prepare the way that people will have a spiritual experience with the Lord.
Gene R. Cook, Teaching No Greater Call, p. 41, 1999.
I think this quote relates to many interactions in life, not just gospel teaching. Parenting, interactions with others, online presence…
When I’m in a teaching moment, my preparation matters, but only if I use it to point to Jesus Christ.