The color scheme of this piece only emphasizes the involved flames. It depicts a story in chapter 3 of the Book of Daniel. Three Hebrew men are thrown into a fiery furnace. However, they not only walk out unscathed – they are accompanied by Jesus! Read more about this on Wikipedia.
This image is from the book “Hours of Henry II, King of France”. The full book is free to read online via The National Library of France(BNF).
Image source. This photograph of the original work is provided by G. Garitan. He has offered this filed under Creative Commons Attribution-Share Alike 4.0 International license. Thanks Garitan! Information source Wikipedia – The Free Encyclopedia, licensed under Creative Commons Attribution-ShareAlike License.