In Seeking the Imperishable Treasure, Johnson tracks the use of a single saying of Jesus over time and among theologically divergent authors and communities. He identifies six different versions of the saying in the canonical gospels and epistles (Mark, Matthew, Luke, John, James, and Colossians), as well as the Gospel of Thomas and Q. After tracing the tradition and redaction history of this wisdom admonition, he observes at least two distinctly different wisdom themes that are applied to the saying