Bachya ben Asher

Bachya ben Asher ibn Halawa (Rabbenu Bachya) was a Spanish rabbi, scholar, and biblical commentator. He was a student of Rashba and modeled his exegetical style on that of Ramban. He built his Torah commentary on the four principles denoted by the letters PaRDeS, "Peshat, Remez, Drush, Sod," or 1) the plain text; 2) a deeper, more philosophical approach to the text; 3) a homiletical approach to the text; and 4) a mystical kabbalistic interpretation of the text. He also work an ethical work, Kad HaKemach.