Create an image that portrays a religious scenic atmosphere where a sermon takes place, respecting and exemplifying Christian devotion. Imagine a visible manifestation of the Holy Spirit, symbolized by a dove descending down. Accompany it with a representation of divine fire, symbolized by warm, vibrant colours. Render this scene with delicate and fluid artistic features that correspond to the classic watercolor style. The image should be peaceful and tranquil, embodying the essence of the text from Matthew 3:11, but without including any textual elements.