The document discusses what truly measures the strength of a church. It argues that outward factors like buildings, programs, and committees are not accurate measures. Instead, it proposes five metaphors for measuring a church's strength: 1) How well its members function together like a body, 2) The level of love among members like a family, 3) How fervently the church praises God like a temple, 4) The degree to which the church submits to Christ's lordship like a kingdom, and 5) How purely the church maintains itself as the bride of Christ. A church that exemplifies these five qualities internally will be a strong church regardless of outward appearance.