Hand Painted Bulgarian Icon - Jesus Knocks on the Door The icon "Jesus Knocks on the Door" is a reference to a famous biblical verse from the book of Revelation 3:20: "Behold, I stand at the door and knock; if anyone hears My voice and opens the door, I will come in to him and will sup with him, and he with Me." This image is often interpreted as a symbol of God's desire for a personal relationship with each person. The key point in Christian theology here is free will - Jesus knocks, but does not forcefully invade; the person must choose whether to open the door of his heart. Often, icons in Bulgaria depict Jesus in front of a door that has no handle on the outside - this emphasizes the idea that it can only be opened from the inside.