Marvelous things did He in the sight of their fathers, before the exodus, in the land of Egypt, in the field of Zoan, this being the residence of the Pharaohs at the time of the deliverance from Egypt, Numbers 14:22. The miracles performed by Moses were probably all done in or near this capital, and it is mentioned also at a later date because it was located in the most easterly portion of Egypt, in the part nearest to the land of Canaan.
Related Commentaries of Psalms 78:12
Psalms 78:12
12 Marvellous things did he in the sight of their fathers, in the land of Egypt, in the field of Zoan.