“Depart from here and turn eastward and hide yourself by the brook Cherith, which is east of the Jordan.
The history of Elijah begins somewhat abruptly. Usually, when a prophet enters, we have some account of his parentage, are told whose son he was and of what tribe; but Elijah drops (so to speak) out of the clouds, as if, like Melchisedek, he were without father, without mother, and without descent, which made some of the Jews fancy that he was an angel sent...
Commenting on 1 Kings 17:1-7
Get thee hence, and turn thee eastward,.... From the place where he was, being in danger from Ahab and Jezebel, provoked by his reproofs, threatenings, and prophecies: and hide thyself by the brook Cherith, that is before Jordan; in some wood or cave near it, or among the reeds and rushes that grew on the banks of it; and Bochart (o) takes it to be...
Hide thyself by the brook Cherith - This brook, and the valley through which it ran, are supposed to have been on the western side of Jordan, and not far from Samaria. Others suppose it to have been on the eastern side, because the prophet is commanded to go eastward, Kg1 17:3.