I will set his hand also in the sea ... - His dominion shall extend from the sea on the one hand to the rivers on the other. The sea here evidently refers to the Mediterranean; and the rivers to the great rivers on the east - the Tigris and Euphrates. These were the promised boundaries of the land. Genesis 15:18. David secured a conquest over all these territories, and united all under his scepter, thus securing the accomplishment of the promise made to Abraham. See the notes at Psalms 60:1-12.
Related Commentaries of Psalms 89:25
Psalms 89:25
25 I will set his hand also in the sea, and his right hand in the rivers.