The word - This indicates that this is the commencement of a new prophecy. It has no immediate connection with the preceding. It was delivered doubtless at a different time, and with reference to a different class of events. In the previous chapter the term “vision” is used Isaiah 2:1, but the meaning is substantially the same. The term “word” דבר dâbâr, denotes a “command, a promise, a doctrine, an oracle, a revelation, a message, a thing,” etc. It means here, that Isaiah foresaw certain “future events” or “things” that would happen in regard to Judah and Jerusalem.
Judah ... - see the notes at Isaiah 1:1.