This Ancient Christian Texts volume, translated and edited by Gerald L. Bray, is the first of two that will offer a first English translation of the anonymous fourth-century commentary on the thirteen letters of Paul. Widely viewed as one of the finest pre-Reformation commentaries on the Pauline Epistles, this commentary, until the time of Erasmus, was attributed to Ambrose. It was Erasmus who gave the author the epithet Ambrosiaster ("Star of Ambrose").