This article first briefly examines the textual structure of the Sakka Saṃyutta of the Pāli Saṃyutta-nikāya in conjunction with two other versions preserved in Chinese translation in Taishō vol. 2, nos 99 and 100. Then it compares the main teachings contained in the three versions. These three versions of this collection on the subject of Śakra, ruler of the gods, represent three different early Buddhist schools within the Sthavira branch. This comparative study of these three different versions focuses on some shared images of Śakra and on disagreements of some teachings presented in the three versions. It reveals similarities and significant differences in structure and doctrinal content, thus advancing the historical/critical study of early Buddhist doctrine in this area.