Plain Truth and the Double Heart: Augustinian Absolutism and African Christian Ethics

Abstract

Contemporary African Christian contexts face a deep ethical tension between traditional communal values, which often prioritise social harmony through practical survival, and the strong theological demand for complete integrity. This research explores the resulting “crisis of conscience” and the reliance on situational ethics by combining Augustinian theological reflections with modern philosophical ethics and African social and religious realities. The research uses an intersectional approach. It combines knowledge studies, theological discussion, and cultural analysis to assess the moral significance of speech acts. The study develops a systematic classification of truth and deception to sort speech acts by how internal beliefs, external expressions, and objective reality align. A key part of this argument is the difference between the failure of the intellect and the corruption of the will. The research identifies "Material Error" as an objective mistake made with honest intent, making the person "formally innocent." In contrast, it points out the "Illusory Lie," where moral blame arises from a "lying heart" (duplex cor) even if the factual details are accidentally correct. The investigation also critiques the spread of “fake miracles” and prosperity-driven deceit in the modern African church as a spiritual attack on the local value of Eziokwu bun du (Truth is life). Ultimately, the study argues that St. Augustine's complete ban on lying offers a strong basis for integrity in modern Africa. By promoting “Plain Truth,” which combines internal beliefs and objective reality, the research encourages a transformative discipleship that restores God's genuineness in the community.