Jerry Bridges paints a fairly familiar picture in this book: new Christian enthusiastically expects his faith to carry him above sin, and quickly realizes the surprising truth that the Christian life doesn't actually work that way. He falls into despair because if he was really a Christian, he should be walking in victory, right? And then there are all those well-meaning people ready to assure that struggling Christian that there is no need to be concerned because "Christ has already done everything." "Don't be trying; be trusting."
And does anyone ever explain to him what some of those kind of statements are even supposed to mean in everyday life? Because, experientially, everyone who tries it knows one thing about living in holiness: it's hard, back-breaking work. It takes effort. And while it's not a list of do's and don't's, it does mean adherence to principles that a lot of other people are going to think are crazy. For some of us, this is confusing because we thought holiness was supposed to be the natural fruit of our justification in Christ--that somehow God was going to do it for us, and that effort on our part would be going back to the law.
The Pursuit of Holiness is aimed at Christians in exactly that kind of position. Yes, holiness is required, Bridges emphatically argues, not primarily so that we can live in victory (which is self-focused), but because all sin offends the holiness of God (so holiness is God-focused). This locates personal holiness against the holiness of God, and allows us to see it in proper perspective: “As we grow in holiness, we grow in hatred of sin; and God, being infinitely holy, has an infinite hatred of sin.” Bridges also distinguishes true holiness from various types of legalism, while offering some practical suggestions for daily living. Yes, it requires effort, and yes it requires taking responsibility for the need to pursue holiness. It's a tough message, and I found it both challenging and convicting.
However, one Goodreads reviewer has criticized the book, not unjustly, saying, "Bridges’ answer pretty much boils down to, 'Memorise the Bible and try really hard.'.... He says that we need the Holy Spirit’s help and to walk in obedience to the word...but he never really defines what relying on the Holy Spirit means beyond the conviction of the Spirit."
This weakness is symptomatic of a larger weakness in most types of Evangelical theology, and as a Catholic I would say the gap ought to have been filled with teaching on the sacraments as a means of grace. These make real to us that holiness requires our continual participation in the Divine will, but that grace for the endeavor is always given to us, to be simply received, not earned.
All in all, though, in spite of some weaknesses (mostly weaknesses of omission), The Pursuit of Holiness was a good, Scripturally-grounded work and I would recommend it to anyone looking for guidance on what it really looks like to avoid both antinomianism and legalism, and truly pursue holiness.