In 2001, Grudem became Research Professor of Bible and Theology at Trinity Evangelical Divinity School, where he was also the chairman of the Department of Biblical and Systematic Theology.
In 2001, Grudem became Research Professor of Bible and Theology at Phoenix Seminary. Prior to that, he had taught for 20 years at Trinity Evangelical Divinity School, where he was chairman of the department of Biblical and Systematic Theology.