Reverend Dr. T. L. Lowery gave this testimony about Demon Possession
In the early summer of 1981, I had just come off a forty-day fast during which I was seeking God's direction for the church. I was weak and frail in body, but felt good in my soul.
Almost immediately afterward, I received a telephone call inviting me to come and preach at the Alabama Camp Meeting in Birmingham. That night, as thousands of people filled the tabernacle, it seemed that there were just as many people standing and sitting around outside the building as there were inside.
When I stepped to the podium, I had to hold on to the pulpit in order to stand up. As I began to preach, I felt something come over me. People said that I looked as if I had seen a ghost. The congregation said that my countenance literally changed. I first thought that this was because I was still experiencing the physical effects of the fast, but in reality it was the spiritual results of my fast.
The anointing of the Holy Spirit not only fell on me, but seemingly on everybody in the congregation. By the close of the message, it seemed that every able-bodied person in the tabernacle was standing. Hundreds came forward for the salvation and to receive the baptism in the Holy Spirit.
In the prayer line for healing and deliverance, I saw a woman approach me and felt the Spirit check my spirit. When she reached where I was standing, I said to her, under the anointing of the Holy Spirit, "My dear lady, you are demon-possessed." Immediately, the look on her face changed, and her countenance became distorted in a horrible, grotesque manner.
I could hear the voice of the demon itself as the woman began to talk back to me. I put the microphone to her lips so that everyone at the camp meeting could hear what the demon was saying. The voice within her raged: "We've been here a long time, and we will not come out. You are powerless to force us to come out."
My spirit rose within me when she challenged the authority I have in Christ. The Spirit of God came on me stronger. The entire congregation heard me shout: "You foul demon of hell, you know who I am. I am T. L. Lowery, a servant of the living God; and I charge you in the name of Jesus Christ of Nazareth to come out! In Jesus' name, come out now!"
Suddenly, we heard an explosion that some said sounded like a cannon went off. The demon came out of the woman in a literal, physical manifestation. The people described it as a black, furry mass with a long tail. I saw it come out of the woman's mouth and shoot out over the heads of the people. Then it went out through the side of the tabernacle with a noise that sounded like a freight train.
Reference for the above: Mary Baxter and Dr. T. L. Lowery's book, "A Divine Revelation of the Spirit Realm"