Anyone who thinks only high church traditions are afflicted with nominal believers should spend some time in the Bible Belt, where there’s a low-church nominal Baptist everywhere you look, a Baptist who stepped into a revival meeting 25 years ago and got himself saved.
A church that unapologetically and uncompromisingly teaches the whole Bible is less likely to have problems with nominalism. Nominal believers will find too much to object to, and find it too easy to go down the street to a church where the Bible is muffled and muzzled. When Jesus is present through the Word, He is a savor of life and of death. Many will stay away because they don’t like the “stench” of Jesus.
Leithart makes the point that there are numerous factors influencing people into their nominalism, and that high church liturgy is certainly not one of them.