This thesis is an in-depth study into two of the UK charity iERA's da'wah narratives: the Qura'nic embryology 'miracle' and the Kalam Cosmological Argument. While the embryo verses have received scholarly attention, there is little to no research in the da'wah context for both narratives. Berger and Luckmann's social constructionism was applied to both, which were problematic. It was found that iERA constructed its exegesis of the embryo verses by expanding on classical meanings to show harmony with modern science. Additionally, it developed the Cosmological Argument by adapting it to Salafi Islamic beliefs. The construction processes were found to be influenced by an online dialectic between iERA and its Muslim and atheist detractors, causing it to abandon the scientific miracles and modify the Cosmological Argument. Signs point to a weakening of faith among young people, including Muslims, as they have unprecedented access to unfiltered online information on religion and science. By employing the narratives, iERA aims to legitimate the fundamentals of Islam to Muslims and to attract converts by presenting it as a rational and modern faith. While iERA's da'wah template is practical, its errors are relevant to the wider discussions on Qur'anic exegesis and modern challenges to the religion.