Thaddeus was one of the original twelve disciples chosen by Jesus Christ. Thaddeus, whose name is also spelled Thaddaeus, is somewhat of a mystery apostle. For one, Thaddeus is hardly mentioned in the Bible. To complicate matters, Scripture refers to Thaddeus by a few different names. Jerome, a fourth-century Bible scholar, dubbed Thaddeus “Trinomious,” which means “the man with three names.”