This work situates the Qur'anic story of Moses' meeting with Khiḍr (Sūrat al-Kahf, 18:60-82) in an ever-expanding network of intercultural and interreligious ideas about knowledge, humility, and spiritual excellence, where Moses and Khiḍr are seen as representing the ẓāhir (exoteric) and the bāṭin (esoteric), respectively.