The image is an example of illuminated manuscript.
Explanation:
The practice of illumination dates back to early 5th century when scribes would use richly colored pigments as well as gold and silver leaf to decorate the pages of books and Bibles.By illuminating texts, skilled artists were able to beautify the pages of the Bible as a way to summarize, explain, and, ultimately, preserve its message.
It is an example of the Text of the New Testament. It's importance in history, is that many of the christians believed that it was the fulfilling of the old testament.