Nahum
Nahum 2:6ESV·traditional attribution

The river gates are opened; the palace melts away;

John Calvin Reformed @genevareformer

By the gates of the rivers the Prophet means that part of the city which was most fortified by the river Tigris; for the Tigris flowed close by the city. As then the Tigris was like the strongest defense, (for we know it to have been a most rapid river,) the Prophet ridicules the confidence of the Ninevites, who thought that the access of enemies...

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. An alarm of war sent to Nineveh, Nah 2:1. The prophet speaks of it as just at hand, for it is neither doubtful nor far distant: "Look about thee, and see, he that dashes in pieces has come up before thy face.

Commenting on Nahum 2:1-10

John Gill Reformed Baptist @doctorgill

The gates of the rivers shall be opened,.... Of Diava and Adiava, or Lycus and Caprus, between which, according to some writers (i), Nineveh was situated; or the gates of the city, which lay nearest to the river Tigris, are meant; or that river itself, the plural for the singular, which overflowing, broke down the walls of the city for two and a half miles...