"Akeidat Yitzchak," written by the Spanish rabbi Isaac ben Moses Arama (c. 1420–1494), is a collection of philosophical sermons on the Torah. The book is composed of 105 “gates” each containing a sermon. Each sermon discusses a philosophical idea that comes from the chosen texts and a commentary that tries to solve the problems in the text. The work was first published in 1522 in Salonica.