Create a connection with the verse Revelation 3:20 without using text or words. Render a digital art that portrays a respectful, devotional representation of Christianity. The scene should have an unseen figure knocking at a large, wooden door in an ominous, yet welcoming atmosphere. Near the door there should be a humble man, his ear cupped, as if listening to a distant sound. In the background, include a warmly lit room symbolizing an invitation to a banquet or supper. The atmosphere should be imbued with a touch of the divine, yet humane and inviting.