Isaiah 21:16
For thus hath the Lord said unto me, Within a year, according to the years of an hireling, and all the glory of Kedar shall fail:
Cross-reference
Isaiah 16:14 uses the same 'within X years, as a hired worker' formula to predict Moab's fall—direct parallel to Kedar's judgment.
1 Chronicles 1:29 lists Kedar among Ishmael's sons, identifying the tribe whose glory is doomed here.
Jeremiah 49:28 also pronounces judgment on Kedar by Babylon — a parallel prophecy reinforcing Kedar's downfall.
Genesis 25:14 lists Kedar as a son of Ishmael, giving the tribal origin for the prophecy against Kedar.
Leviticus 25:50 uses the same phrase 'years of a hired worker' to calculate redemption — the idiom that sets the one-year timeline here.
Ezekiel 27:21 portrays Kedar as merchants trading with Tyre — the same people whose glory will be cut off here.
Psalm 120:5 laments dwelling among Kedar's tents — the same hostile tribe whose glory will end in this prophecy.