A Witch's Invitation is a Contemporary Christian song by Carman from his 1990 album Revival in the Land.
A spoken-word song in first person, the singer tells of receiving mail from "Isaac Horowitz", a warlock who wants to meet with him. After initially tearing up and throwing away the mail, he relents and goes to Horowitz's address, portrayed as a stereotypical "haunted house" with numerous demonic symbols throughout.
Horowitz greets him and proceeds to show him a book, containing numerous newspaper clippings of events where Horowitz used the "dark arts" to accomplish various events such as healing a woman through Babylonian chant, or cursing a man with AIDS at the request of his aunt.
Horowitz then demands that Carman answer "what can your God do to compare with this?" Carman refuses to answer the question, posing another scenario: when Horowitz reaches the point of death, and the demons come for his soul, what dark art (pointing at the book) will Horowitz use to keep them away? Carman replies that, were that him, he would reply "I'm bought with the blood of Jesus! Let me go!", at which point Horowitz demands that Carman leave. Carman does, but not before warning Horowitz not to "rumble with a man of God".