How Long Should You Attribute Footnotes in a Preacher's Notes?

If I am quoting GK Chesterton, I will never quote him. He misunderstands Calvinism and Protestantism. Things that are common knowledge is going to buy. So if you're saying slew of despond, well, that's an image in English language. That's not what you can do for your church. You don't have to know that you're just paraphrasing Kennedy's in all your else. The decision of how I attribute is going to be part of my teaching and leading shepherding the congregation. Anything to add on that? I think I've encountered a situation and maybe this is an obscure one. Well, and one more thing while we're on that