Charles Ellicott Commentary Isaiah 28:19

"As often as it passeth though, it shall take you; for morning by morning shall it pass through, by day and by night: and it shall be nought but terror to understand the message." — Isaiah 28:19 (ASV)

From the time that it goes forth it will take you. —The words that follow remind us of Deuteronomy 28:66-67. Day by day would come the dread rumours of the Assyrian march. Then the “report” would no longer be unintelligible. Instead of line upon line, precept upon precept, there would be “mourning upon mourning,” day and night, each with its sad burden of alarming tidings. To understand those tidings would be a vexation and a terror. The word for “report” is the same as the “doctrine” of Isaiah 28:9, and stands, in each case, for the derided “message” of the prophet.