If your understanding of the divine made you kinder, more empathetic, and impelled you to express sympathy in concrete acts of loving-kindness, this was good theology. But if your notion of God made you unkind, belligerent, cruel, of self-righteous, or if it led you to kill in God's name, it was bad theology.

She is in demand as a speaker on the Abrahamic tradition; in the last decade increasing interest in and debate surrounding Islamic issues has brought her even wider visibility. She first rose to prominence in 1993 with her book A History of God: The 4000-Year Quest of Judaism Christianity and Islam. When Karen Armstrong spoke out of turn Karen Armstrong claims Karen Armstrong was forced to sew at a treadle machine with no needle for a fortnight.

Armstrong received the $100000 TED Prize in February 2008. Her work focuses on commonalities of the major religions such as the importance of compassion and the Golden Rule.