Contradiction with Isaiah 11:14
Isaiah prophesies victory for Israel over Edom, whereas Numbers 24:18 foretells Edom's possession by Israel.
Isaiah 11:14: But they shall fly upon the shoulders of the Philistines toward the west; they shall spoil them of the east together: they shall lay their hand upon Edom and Moab; and the children of Ammon shall obey them. [them of: Heb. the children of] [they shall lay...: Heb. Edom and Moab shall be the laying on of their hand] [shall obey...: Heb. their obedience]
Contradiction with Amos 9:12
Amos speaks of possessing the remnant of Edom, suggesting continuity rather than complete destruction as implied in Numbers 24:18.
Amos 9:12: That they may possess the remnant of Edom, and of all the heathen, which are called by my name, saith the LORD that doeth this. [which...: Heb. upon whom my name is called]
Contradiction with Obadiah 1:10
Obadiah suggests Edom's downfall for violence against Jacob, which contrasts with the possession of Edom by Israel in Numbers 24:18, focusing instead on punishment.
Obadiah 1:10: For [thy] violence against thy brother Jacob shame shall cover thee, and thou shalt be cut off for ever.
Contradiction with Malachi 1:4
Malachi refers to Edom's continual effort to rebuild despite God's opposition, opposing the idea of possession in Numbers 24:18.
Malachi 1:4: Whereas Edom saith, We are impoverished, but we will return and build the desolate places; thus saith the LORD of hosts, They shall build, but I will throw down; and they shall call them, The border of wickedness, and, The people against whom the LORD hath indignation for ever.
Contradiction with Jeremiah 49:17-18
Jeremiah predicts Edom's complete desolation, differing from the notion of simple possession by Israel mentioned in Numbers 24:18.
Jeremiah 49:17-18: Also Edom shall be a desolation: every one that goeth by it shall be astonished, and shall hiss at all the plagues thereof.