I learned quite some things I should do to become an effective witness of our Lord and Saviour Jesus Christ. Reading on the subject "HOMILETICS" here is like taking the course in a bible college. Thanks to @praise-eu for the post and thanks to @berniesanders for an upvote
https://steemit.com/steemchurch/@praise-eu/homiletics-3-the-personality-of-the-preacher