Kay Warren cofounded Saddleback Church with her husband Rick Warren in Lake Forest, California. She is a passionate Bible teacher and respected advocate for those infected with and affected by HIV and AIDS, as well as orphaned and vulnerable children. She founded Saddleback's HIV/AIDS Initiative. Kay is the author of Say Yes to God and coauthor of Foundations, the popular systematic theology course used by churches worldwide. She has three children and five grandchildren.