When Jack Deere turned seventeen, he did not know God or a single verse of Scripture. At twenty-seven, he became a professor of Old Testament Exegesis and Semitic Languages at Dallas Theological Seminary. He started and pastored an influential church in Ft. Worth, Texas. He taught his church and his students that God no longer gave the "miraculous gifts of the Spirit" or spoke outside the pages of Scripture.

After teaching seminary for ten years, a bestselling author shocked Deere when he told him that he not only believed God was regularly healing people today, but that he had seen undeniable miracles in answer to his prayers. For the next four months, Deere studied every healing story in the New Testament. This time he came to those stories with the open mind of a scholar, completely at home in the original languages of the Bible, not as a gullible student swallowing the prejudices of his teachers. At the end of those four months, Deere was convinced, against his will, that God was still healing and speaking just as he had done in the New Testament.

Deere and his wife Leesa began to pray for people in their church and witnessed dramatic, documented healings.

In Why I Am Still Surprised by the Power of the Spirit, Deere demonstrates that the Scriptures teach that God is healing and speaking today just as he did 2000 years ago. He tells documented stories of modern miracles. He explains the nature of spiritual gifts, defines each spiritual gift, offers sound advice on discovering and using the gifts in church today. He shows how all of this part of God's way of deepening our friendship with him.

A modern classic, Surprised by the Power of the Spirit was published twenty-five years ago, and in that book Deere claimed that he would live long enough to see the majority of conservative evangelicals come to believe in all the gifts of the Spirit. That has come true. The theological landscape has changed dramatically. Nearly completely rewritten, this new edition still offers that proof but has about seventy percent new material on the practical matters of experiencing and using spiritual gifts. For example, anyone who prays regularly for the sick will encounter demonic power. Demons pop up all over the Synoptic Gospels. There are two new chapters on ministering to the demonized. There is much confusion on what it means to be filled with the Spirit today. Deere takes three chapters to examine every use of "filled with the Spirit" and "full of the Spirit" in the New Testament to show why and how God still fills his servants with the Holy Spirit. There are many new stories of God's power, even walking on water and multiplying food. Deere also introduces the newest literature defending and explaining the gifts of the Spirit. All this and more continues the book's legacy for a new time.