What is St. Isaiah the patron saint of?

St. Isaiah, also known as Isaiah the Prophet, is considered a prophet in Judaism, Christianity, and Islam. He is not officially recognized as a patron saint in the Catholic tradition, as he predates the establishment of the Christian Church. In the Eastern Orthodox Church, he is venerated as a prophet and his feast day is celebrated on May 9th. He is known for his prophecies in the Old Testament, particularly in the Book of Isaiah.