The Superscription (1:1):

1:1 The superscription has been affixed to the prophecies of Micah by an unknown editor and is, in its initial phrase (The word of the LORD that came to Micah) the same form as that found in Hosea 1:1; Joel 1:1; and Zephaniah 1:1.

The claim that what follows is “the word of the LORD” is intended to apply to the entire book. Not just selected portions of the book, and not just portions that scholars judge to stem from the prophet himself are to be understood as words from God. No. All seven chapters are “the word of the LORD,” bearing the authority of the Lord of heaven and earth and therefore still authoritative for us and for the reader in any age (cf. Luke 16:31). Because Micah 1–7 bears such authority, it has been preserved and carefully handed down to us over al…