Among positions hitherto held is the idea that religion when it comes to the matter of conflict, has been destructive contributor. However, in recent times, attention has been granted to the role of religion and religious peoples in conflict resolution and the process of making peace. As such, this research argues that, the Qur'ānic concept of 'adl ('justice') is a significant resource to the Qur'ānic concepts of salām ('peace') and ṣulḥ ('reconciliation'). Analysing Qur'ānic resources on 'adl, salām and ṣulḥ such as Q.2:30; 49:13; 16:89, 90 reveals a Qur'ānic conceptual interconnectedness between the Qur'ānic concepts of tawḥīd ('submission to the will of Allah'), hidāyah ('guidance'), salām, 'adl and ṣulḥ. This revelation is significant towards the commitment of Muslims to 'adl as the command to be just articulated in Q.16:90 is interpreted to mean lā ilāha illā 'llāh ('there is no god but Allah'), which also stands for tawḥīd, and tawḥīd, in turn, is said to lead to peace and reconciliation as expressed by salām and ṣulḥ. The above Qur'ānic conceptual interrelationships are revealed as a result of the Qur'ānic comparative methodology involving five Arabic exegetical works that the researcher has employed, to promote a better Qur'ānic understanding. The choice of this methodology was in response to the call for a better way of elucidating the text of the Qur'ān. The application of the above methodology is however limited to this research alone. The research reveals that even though Muslims may be committed to Qur'ānic commandments due to their divine origin, it remains to be seen how these doctrinal issues are put into practice. The research has contributed to the body of knowledge by discussing the significant role of religion, and religious text in organising a just society in general and, in particular, in promoting 'adl, salām and ṣulḥ in society.