Book excerpt: Since we live by the Spirit, let us keep in step with the Spirit (Galatians 5:25). The Holy Spirit empowers us, guides us, and enables us to grow and endure in our relationship with the Father through Jesus Christ. Often the most misunderstood member of the Trinity, the person of the Spirit continues to attract attention today amidst church revivals and renewals. In this new edition of his classic Keep in Step with the Spirit, J. I. Packer seeks to help Christians reaffirm the biblical call to holiness and the Spirit s role in keeping our covenant with God. Packer guides us through the riches and depth of the Spirit s work, assesses versions of holiness and the charismatic life, and shows how Christ must always be at the centre of true Spirit-led ministry. A new chapter explores Christian assurance. With abiding relevance and significance, Keep in Step with the Spirit sets forth vital knowledge for healthy and joyous Christian living, through understanding and experience of God the Holy Spirit. Here is a book for every serious believer to read and re-read.