Balaam's donkey NUM 22:28

Balak, king of Moab, pays the seer Balaam to curse Israel, and Balaam sets out riding his donkey. An angel with a drawn sword blocks the road, invisible to Balaam but seen by the animal, which turns aside three times and is beaten each time. The donkey then speaks and protests the beating, and only afterward does Balaam himself see the angel.

The episode unfolds on the road toward the plains of Moab, where Israel is camped near the end of the wilderness wandering, just before entering the promised land. Balaam travels from his own country at Balak's summons, and the confrontation with the angel happens somewhere along that journey.

The text simply presents a reversal: the man hired for his supernatural insight is blind at this moment, while the voiceless animal he rides perceives the danger clearly. This contrast sets up the point of the whole episode, since Balaam's eyes are only opened afterward, once the donkey has already acted to save him. Readers generally take it as a deliberate irony rather than something the passage explains further.

It warns Balaam, and the reader, that he does not fully control what will come out of his mouth once he reaches Moab, since even his own donkey can act more faithfully than he does. That sets up the larger irony of the account: hired to curse Israel, Balaam instead blesses them four times over. Christians generally agree on this moral point, though they differ on how literally or symbolically to treat the talking donkey itself, and the passage does not settle that question for them.