Bible

The authors use many Bible references throughout the book. They assume the reader holds the Bible as a perfect guide by which to follow in everyday life. They use both the old and new testaments to support their claims for boundaries. They point to many well-known characters in the Bible as examples.

Fence

The authors compare healthy boundaries to a fence, which allows a person to interact with the world around him, yet maintain a distinct line around his property that he can defend. In addition, the fence should include a gate, to let in some good, but to keep the bad out.

Wall

The authors compare unhealthy boundaries to a wall, which keeps out everything, both the good and the bad. Often victims of abuse have wall-like boundaries. Walls also keep bad in, preventing healing for that person.

Gate

All good fence-like boundaries must possess a...