Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a very timely book

this book gives a very timely warning on delving into spiritual warfare without knowledge or help. whether you agree with it or not, it'll definitely make you think. however, this book is only a caution. it does not say that all spiritual warfare is wrong- only that we need to be careful if we are called to engage in it; we've gotta make sure that we're firmly grounded in Christ or else we're in for some needless casualties.