Isaiah 11:9 - Exposition

My holy mountain . As the Jewish Church is always bound up with the "holy hill of Zion," so the Messianic one receives the designation of "the mountain of the Lord" ( Isaiah 2:3 ; Isaiah 30:29 ; Micah 4:2 ), or "the holy mountain" ( Zechariah 8:3 ). What was physically true of the type is transferred to the antitype, which is "a city set upon a hill" in a certain sense. The earth shall be full of the knowledge of the Lord (romp. Habakkuk 2:14 ; Joel 2:28 ; Matthew 28:1-20 :29). A fruitful knowledge, guiding and influencing conduct, seems to be intended (see below, Isaiah 54:13 , "All thy children shall be taught of the Lord, and great shall be the peace of thy children"). As the waters cover the sea ; i.e. "as the ocean covers and fills the bed prepared for it."