Defining Marriage

Defining Marriage: Why Only One Man and One Woman? is a strategic teaching resource that equips Christians to confidently articulate, defend, and live out a biblical and rational view of marriage in today’s culture. It shows how Scripture, history, logic, and social science converge to affirm that conjugal marriage between one man and one woman best promotes human flourishing for spouses, children, and society.

Purpose and audience

This booklet is crafted for pastors, elders, small-group leaders, and thoughtful believers who are regularly confronted with cultural claims such as “love is love,” “gender is irrelevant,” and “marriage is just a contract.” It offers structured content, discussion questions, and debate responses so churches can disciple members, not merely react to cultural pressure.

Four-part structure

Defining Marriage walks readers through a clear four-part journey: discerning culture, grasping Scripture, engaging logic, and debating objections. Each section builds on the last to move people from confusion and hesitancy to clarity, conviction, and compassionate engagement.

• Discern the culture: Introduces “Why Marriage Matters,” contrasts the conjugal vs. revisionist views of marriage, tests discernment, and asks whether marriage is merely a “religious issue,” using voices like Peter Kreeft and Chief Justice John Roberts. This section helps believers recognize that the redefinition of marriage is a profound civilizational shift, not a minor policy tweak.
• Grasp the Bible: Shows God as creator, instituter, and definer of marriage, then unpacks Genesis 2 and key Hebrew terms to establish marriage as one biological man and one biological woman joined as “one flesh.” It also catalogs counterfeit sexual relationships—pornography, cohabitation, adultery, homosexuality, and more—calling sin what Scripture calls sin while pointing toward repentance.
• Engage the logic: Uses “logic, history, and science unaided by faith” to show that traditional marriage uniquely supports maturity and life for husbands and wives, children, and the wider society. Concepts like human flourishing, complementary gifts of men and women, and the advantages of two-parent homes are supported with common sense and research findings.
• Debate the issue: Offers concise, reasoned responses to common slogans and objections, including “Love is love,” “Gender is irrelevant,” “You are a bigot,” “Same-sex marriage is no threat,” and “Homosexuals can raise children just as well.” Readers receive language, analogies, and data they can use in conversations, classrooms, and public discussions.

Key benefits for ministries

Using Defining Marriage, churches gain a ready-made curriculum that is both intellectually rigorous and pastorally sensitive. Leaders can host multi-week classes, leadership trainings, or Q&A nights with confidence that the material is biblically anchored and culturally informed.

• The booklet’s integrated discussion questions transform passive listeners into active participants, fostering deeper understanding and genuine conviction.
• Its use of social science (e.g., Regnerus’s research and marriage outcomes) and real-life testimonies (such as children raised in same-sex homes) equips believers to engage friends, co-workers, and policymakers in terms they can understand.

Practical use and next steps

Defining Marriage pairs naturally with sermons, workshops, and small groups on sexuality, gender, family, and cultural apologetics. It can serve as a core text for a church-wide series, a training manual for elders and youth leaders, or a resource for marriage and family ministries seeking to address hard questions with clarity, courage, and grace.