This article challenge the false teaching that Christians should not use their minds in matters of faith and spirituality. It argues any kind of teaching that discourages Christians from using their minds is not only wrong but devilish in that it provides the soil in which other errors can take root. In particular, it offers the danger of opening people up to devilish seduction through encouraging a lazy mental passivity, which depends upon the say-so of Church leaders to decide whether a particular occurrence originates from the Holy Spirit. This leads to a superficial attitude which says, 'if it's spectacular it or makes a loud noise it must be a work of God.'