This study explores the theological and linguistic foundations of the beauty of evangelism by analyzing Isaiah 52:7 and Romans 10:15—the only biblical texts that explicitly link beauty with the proclamation of good news. Through a comparative exegesis of the Hebrew nāweh (“fitting,” “harmonious”) and the Greek hōraios (“timely,” “ripe”), the paper demonstrates that the Old Testament portrays beauty as the aesthetic harmony of shalom, whereas the New Testament presents beauty as kairos maturity. Together, these nuances reveal that evangelism is not merely the transmission of doctrinal truth but the manifestation of divine beauty through human witness. Drawing on theological aesthetics (Balthasar, Begbie, Brown, Hart), this study constructs a triadic framework of truth, goodness, and beauty as the form of evangelistic witness. Evangelism becomes an aesthetic act in which truth is proclaimed, goodness enacted, and beauty revealed as harmony and timeliness. The paper concludes that in a disenchanted age, beauty offers a renewed mode of persuasion: the Gospel becomes credible when it becomes beautiful.
Sung Hyuk Nam (Sun,) studied this question.