The chapel was long and wide. Its curved ceiling was held up by twelve fan-shaped pieces of wall called "pendentives". Pope Julius told Michelangelo to paint one of the twelve apostles of Jesus on each pendentive. Michelangelo started to do this. Then he got a different idea and scraped off the work that he had done. Instead of apostles, he painted twelve prophets. Seven of them were men from the Old Testament but the other five were women and did not come from the Bible. They were five prophets from the Classical world. Like the prophets in the Bible, they had all told people about the birth of Jesus.