Amusing probably isn't the right word, probably captivating is better. Preaching is a very well developed art; listen to preachers and they're always telling a story of some sort, the story goes to lows and then up to highs, they draw that story back to the lives of their audience and then finish with a call to action to make their lives better. Even details like the preacher's cadence and the songs and rituals are well thought out and tested to keep people engaged. It also helps that the bible is essentially a collection of stories that touch on fundamental themes of the human condition and that Jesus is a universally relatable figure.
