The growing trend of adult learners in Christian universities offers an opportunity to enrich their marriages and spiritual formation. A marriage enrichment seminar was presented to sixteen adult and graduate students enrolled in the Adult Graduate Studies program at Evangel University, and their spouses, in a two-day, eight-hour relationship workshop based on an overtly Christian adaptation of the PREP curriculum. The goal of this relationship seminar was to impact knowledge, attitude, and spiritual formation with a biblical view of marriage. The results of this project illustrate measurable impact through pre- and post-seminar assessments and student responses that reinforce this strategic need and value of spiritual formation in marriage for adult students, meeting a goal of the university and creating greater Kingdom impact. Pre- and post-seminar assessment data indicated a significant effect size difference on 30 measures. The moderate (0.5 to 0.7) and strong (0.8 +) effects were in the areas of the objectives of communication, conflict resolution, biblical and spiritual aspect of marriage, love languages, and marital satisfaction. The highest effect was a significant shift in the understanding of the holistic satisfaction of marriage intimacy and connectedness. In addition to the differences found in the effect size, a statistically significant difference (p < 0.05) was found in nine of the pairs and a highly significant difference (p < 0.001) in eight of the pairs when a paired samples test was applied to these 30 measures, further confirming the beneficial effects of such a seminar. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]