The temptation to adjust preaching from offering Christ to offering helpful advice about how to live you best life now has an old pedigree.
The temptation should be resisted at all costs. We live by the word of God alone.
From Accidental Preacher by Will Willimon.
I’m old enough to remember when preachers were expected to be good with Scripture. These days we’re cast into the role of experts doling out advice on marriage, business, the purpose—driven life, legislated justice, and sexual satisfaction. A lot of the preaching I hear today (and not only in a former stadium in Houston) is good advice; sentimental, worldly wisdom substituted for gospel foolishness; helpful hints for homemakers; tips for the anxious upwardly mobile; common sense widely available without having to get dressed and come to church to hear it. At least Rotary serves lunch.
In the temptations of Jesus, it was the devil who proffered common sense. Sanctimonious advice, even well meaning, is a bore. Most commonsense sermons — platitudes and principles foisted upon the congregation as if the preacher were an expert on life — are offered in the attempt to help us retain control over our lives by using common sense to keep a living God at bay. Preachers ought to remember the audience’s elation when Hamlet’s uncle — tedious, bloated-with—advice Polonius — finally gets a knife to the gut.
Will Willimon, Accidental Preacher, Eerdmans, 2019, pg 101.