Sustainability and Professional Ethics in Digital Evangelization Ogundipe O Lawrence SDV This lecture will examine sustainability and professional ethics in the context of digital evangelization from a Catholic perspective. Drawing from magisterial documents such as *Inter Mirifica* (1963), *Communio et Progressio* (1971), and *Ethics in Internet* (2002), it highlights three interconnected dimensions of sustainable and ethical digital ministry: maintaining a healthy digital presence, observing Church standards and copyright laws, and developing long-term evangelization strategies. By integrating theological reflection with practical guidelines, this study proposes a model of digital ministry that is incarnational, collaborative, and grounded in ecclesial ethics. Introduction Digital transformation has profoundly shaped how the Church proclaims the Gospel and engages with society. The internet, according to the Pontifical Council for Social Communications, represents “a new forum f...