I will set his hand over the sea, his right hand over the rivers. Psalm 89:25
David was a powerful ruler. He did rule over the seas by conquering the Philistines, and the rivers by conquering Syria and some parts of Mesopotamia (2 Samuel 8:3; 1 Chronicles 18:3).
But this verse referring to David was merely a shadow of the things to come in Christ Jesus.
Jesus knew no defeat despite Hell’s best efforts.
Jesus triumphed over death.
Moreover, since Jesus ascended into heaven victoriously, His followers have enlarged His dominion to the four corners of the earth. Satan and his minions still do their best to strop the growth of the Church but fail miserably.