 Abraham Ibn Ezra of Toledo (died 1168) had a good knowledge of Oriental languages and wrote learned commentaries on the Old Testament.He was the first to maintain that Isaiah contains the work of two prophets.Moses Maimonides (died 1204), the greatest Jewish scholar of the Middle Ages, of whom his coreligionists said that "from Moses to Moses there was none like Moses", wrote his "Guide to the Perplexed", which was read by St. Thomas.