“We can have all of the faith one can muster, but if that individual does not follow-up with some work in the process of exercising that faith then it is useless.” A great number of the Christian denomination of the world is declining. It seems like, in these contemporary times, the faith in Christians is slowly thinned out, almost diminishing. With this alarming reality, Michael Barker’s A Call to Holiness reminds us of how powerful our faith is and how essential it is to foster our faith for one’s holistic growth. The book tackles the different challenges that every Christian faces—the challenge of striving to be holy, in thoughts and in deeds. Through biblical scriptures, Christians are made to realize the true meaning of their faith and the sacrifices that one should do for it. Amidst the several causes of the dwindling of Christ’s faithful, this book greatly imparts the message that Christians are ought to look upon themselves and always seek to find their holiness within.