Behold. Figure of speech Asterismos. App-6.
the Lord*. One of 134 places where the Sopherim say they altered "Jehovah" to "Adonai". App-32 and compare App-4.
cast her out. dispossess her.
Related Commentaries of Zechariah 9:4
Zechariah 9:4
4 Behold, the Lord will cast her out, and he will smite her power in the sea; and she shall be devoured with fire.