The reason we need to engage in cultural apologetics is that the history of the evangelical church shows a tendency for cultural interests to eclipse biblical norms. The evangelical drift is to compromise and alter theology to accommodate the trends. This leaves evangelicals susceptible to the manipulation of a godless docket. It takes teaching and courage to build a theology that stands or falls based on the Word of God rather than cultural pressure.
The task of Christians today is to hear, receive, and believe the Word of God in a postmodern, pluralistic society that is in basic rebellion against God and his creation. The task of theology is not only to understand the nature of biblical truth but also to see how that truth is applied to the unbelief of the day. It is those Christians who are deaf to the pressure of the outside world, who are most captured by it during their first encounters.
That is why our January Sunday School covered the topic of sex and gender. Below you will find all three sessions, plus a bonus podcast-only session that puts the finishing touches on the study.
Gender and Creation: What Does Genesis Teach About Gender
Gender and Theory: What is the History of Gender Theory?
Gender and Sex (v.): How Does Gender Theory Pervert Sex?
Session Four (bonus podcast-only session)
Gender and Sex (n.): What Lessons Must We Learn?
 David F. Wells, Above All Earthly Pow’rs: Christ in a Postmodern World (Grand Rapids: Eerdmans, 2005), 6-11.