[citation needed][dead link] Barrett was Professor of Ancient Languages and Old Testament Theology and Interpretation at BJU for almost thirty years.[when?
[citation needed] In 2009, regarding this role, he emphasized his conviction that the seminary connect "head and heart—the intellect and devotion" and that it have an "unapologetic and uncompromising commitment to a Reformed theology that is Christ-centered, biblical, evangelistic, and separatist.
"[1][full citation needed][nb 2] As of October 2014, Barrett was Academic Dean and Professor of Old Testament at Puritan Reformed Theological Seminary, and a minister in the Free Presbyterian Church of North America.
][citation needed] In 2002, the conservative Baptist Bulletin recommended Barrett's Beginning at Moses to counter what it believed to be a common ignorance of Christ's presence in the Old Testament.
[citation needed] Barrett is author of a half dozen books, as well as numerous articles in professional journals and popular religious publications.