Francis Schaeffer argues that evangelicals must take truth seriously and preach and practice biblical truth, even when it is costly. He makes three main points:
1. Evangelicals must accept and preach propositional biblical truth rather than viewing religious truth as only psychological. They must take a stand for truth and against what contradicts God's word.
2. Evangelicals must carefully consider the purity of the visible church and what church discipline and living according to doctrine means.
3. If evangelicals practice "latitudinarianism" or compromise central truths, they will lose credibility with a skeptical world that does not believe truth is possible. They must practice what they preach about truth.