This paper investigates the Qur’ānic conditionally pharyngealized sounds which are /rʕ/, /l/, and /a:/. The Qur’ānic /rʕ/ sound undergoes a depharyngealization process. The Qur’ānic /l/ sound in the word Allah, on the other hand, exhibits pharyngealization, as does the Qur’ānic /a:/ sound. Hence, the study aims to provide a thorough examination of these phonological processes within the Optimality Theory framework. The study also attempts to answer the following questions: (1) What constraints are considered to account for the pharyngealization of the Qur’ānic sounds /l/ and /a:/ and the depharyngealization of the Qur’ānic sound /rʕ/ in the Holy Qur’ān? and (2) How does the grammar rank these constraints to achieve the pharyngealization of the Qur’ānic sounds /l/ and /a:/ and the depharyngealization of the Qur’ānic sound /rʕ/ in the Holy Qur’ān? Both questions have been fully addressed. In addition, this study has proven that the pharyngealized /rʕ/ is the underlying representation of the Qur’ānic alveolar trill sound. This was achieved by demonstrating [rʕ] and [r] allophones environments. Also, the study has shown that the pharyngealized [lʕ] and the non-pharyngealized [l] in the word Allah are comparable to the dark /l/ in English. The Qur’anic /a:/ acquires the [RTR] feature from the preceding pharyngealized sound where it spreads its [RTR] feature rightward to the /a:/. The study concludes that the constraint-based analysis could provide a plausible accounted for examining these phonological processes in the Holy Qur’ān.