Voskuil served in education for a total of 41 years, taught history, and led the faculty of Covenant College. He received the first-ever and rarely-bestowed John W. Sanderson Award for Christian Scholarship during his time at Covenant. Voskuil earned his BA degree from Calvin College and an MDiv from Westminster Theological Seminary. He completed a master’s degree at Loyola University in Chicago, where he also earned his PhD in European history.