Which begs the question: what is the "word of the kingdom"?
The best explanation I've heard is in the way Eugene Peterson paraphrases part of chapter five of Paul's letter to the Galatians:
He (Paul) starts by reminding us there are two very different kinds of life we can live on earth (or on any given day).
One choice is selfish living, and the other choice is kingdom living.
First the bad news: Here's Peterson's paraphrase of Paul's summary of what kind of life develops out of selfish living, of "trying to get your own way all the time" --
repetitive, loveless, cheap sex;a stinking accumulation of mental and emotional garbage;frenzied and joyless grabs for happiness;trinket gods; magic-show religion;paranoid loneliness; cutthroat competition; all-consuming-yet-never-satisfied wants;a brutal temper;an im…