1 Kings 13:32

32. And against all the houses of the high places which are in the cities of Samaria This passage is probably an interpolation, taken from 2 Kings 23:19, for Samaria was not built till the time of Omri, (1 Kings 16:24,) and from that capital city the surrounding country took its name. Omri named his capital after the owner of the hill on which he built the city, from which it appears that only the hill, and not the surrounding province, bore up to that time the name Samaria, or Shomeron. Hence it would have been a singular anachronism for a person of Jeroboam’s time to speak of the cities of Samaria. It is possible, indeed, that a prophet divinely illuminated might have been enabled thus to speak of things that were not as though they were, but the peculiar manner of his doing it here is unlike any other instance of revelation on record.

Shall surely come to pass By this positive word of the old prophet, as well as by all the memorable circumstances of his brother-prophet’s disobedience and death, Jehovah’s oracles against the altar at Beth-el received additional weight and fearfulness.