Homosexuality is romantic or sexual attraction or behavior between members of the same sex or gender. As a sexual orientation, homosexuality refers to "an enduring pattern of or disposition to experience sexual, affectionate, or romantic attractions" primarily or exclusively to people of the same sex; "it also refers to an individual's sense of personal and social identity based on those attractions, behaviors expressing them, and membership in a community of others who share them."

Homosexuality is one of the three main categories of sexual orientation, along with bisexuality and heterosexuality, within the heterosexual-homosexual continuum (with asexuality sometimes considered the fourth). Scientific and medical understanding is that sexual orientation is not a choice, but rather a complex interplay of biological and environmental factors. While some religious organizations hold the view that homosexual activity is unnatural or dysfunctional, research shows that homosexuality is an example of normal variation in human sexuality and is not in and of itself a source of negative psychological effects. Prejudice and discrimination against homosexual and bisexual people, however, have been shown to cause psychological harm.

John Corvino (born 1969) is an American author, lecturer, and professor of philosophy at Wayne State University.

Corvino attended St. John's University in New York City, graduating with a bachelor of arts degree in 1990. He earned his PhD in philosophy at University of Texas at Austin in 1998.

Dr. Corvino is an associate professor in the Department of Philosophy at Wayne State University in Detroit, Michigan. He began teaching there in 1998 and received tenure in 2007. His focii are ethics, applied ethics, and early modern philosophy. Other areas of philosophy which he has concentrated are the philosophy of religion, social philosophy, and political philosophy. His dissertation involved David Hume, and Corvino has taught classes focusing on Hume as well as British empiricism.

He has written and lectured extensively on gay rights. He has also written on business ethics.

Corvino has contributed to many academic journals and periodicals, including Gay and Lesbian Review Worldwide, Southwest Philosophy Review, Business Ethics Quarterly, Philosophical Quarterly, and Ethics. He is a columnist for Between the Lines and the online Independent Gay Forum.

Richard Duane "Rick" Warren (born January 28, 1954) is an American evangelical Christian minister and author. He is the founder and senior pastor of Saddleback Church, an evangelical megachurch located in Lake Forest, California, currently the eighth-largest church in the United States (this ranking includes multi-site churches). He is also a bestselling author of many Christian books, including his guide to church ministry and evangelism, The Purpose Driven Church, which has spawned a series of conferences on Christian ministry and evangelism. He is perhaps best known for the subsequent devotional The Purpose Driven Life which has sold over 30 million copies, making Warren a New York Times bestselling author.

Warren holds conservative theological views and holds traditional evangelical views on social issues such as abortion, same-sex marriage, and embryonic stem-cell research. Warren has called on churches worldwide to also focus their efforts on fighting poverty and disease, expanding educational opportunities for the marginalized, and caring for the environment. During the 2008 United States presidential election, Warren hosted the Civil Forum on The Presidency at his church with both presidential candidates, John McCain and Barack Obama. Obama later sparked controversy when he asked Warren to give the invocation at the presidential inauguration in January 2009.

Frederick Antony Ravi Kumar Zacharias (born 1946) is an Indian-born, Canadian-American evangelical Christian apologist. Zacharias is the author of numerous Christian books, including Gold Medallion Book Award winner Can Man Live Without God? and bestsellers Light in the Shadow of Jihad and The Grand Weaver. He is the founder and chairman of the board of Ravi Zacharias International Ministries, host of the radio programs Let My People Think and Just Thinking, and visiting professor at Wycliffe Hall of Oxford, where he teaches apologetics and evangelism. Zacharias studied as a visiting scholar at Cambridge University and held the chair in Evangelism and Contemporary Thought at Alliance Theological Seminary from 1981 to 1984. Commentator Chuck Colson referred to Zacharias as "the great apologist of our time."

Zacharias was born in Madras, India. Zacharias claims descent from a woman (of the Nambudiri Brahmin caste) and a low caste Boatman. Missionaries spoke to one of his ancestors about Christianity and thereafter the family was converted. Zacharias grew up in a nominal Anglican household, and he himself was an atheist until the age of 17, when he unsuccessfully tried to commit suicide by swallowing poison. While in the hospital, a local Christian worker brought him a Bible and instructed his mother to read to him out of John 14. Zacharias says that it was John 14:19 that touched him and caused him to commit his life to Christ.

Kirk Thomas Cameron (born October 12, 1970) is an American actor best known for his role as Mike Seaver on the television situation comedy Growing Pains (1985–1992), as well as several other television and film appearances as a child actor. In the 1980s and 1990s, Cameron appeared in dozens of television shows and in the films Like Father Like Son and Listen to Me.

Recently, he portrayed Cameron "Buck" Williams in the Left Behind film series and Caleb Holt in the 2008 drama film, Fireproof. Cameron is also an active evangelical Christian evangelist, currently partnering with Ray Comfort in the evangelical ministry The Way of the Master, and has co-founded The Firefly Foundation with his wife, actress Chelsea Noble.

Cameron was born on October 12, 1970, in Panorama City, suburb of Los Angeles. His parents are Robert Cameron, a retired school teacher, and Barbara (Bausmith), a stay-at-home mother. He is the brother to Bridgette, Melissa, and Candace. His younger sister Candace Cameron Bure is most notable for her role as D.J. Tanner on the popular television sitcom, Full House. He went to school on the set of Growing Pains, as opposed to public school. He graduated from high school at age 17 with high honors.