Matthew Henry on 1 Kings 17:1-7
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 from heaven; but the apostle has assured us that he was a man subject to like passions as we are (Jam 5:17), which perhaps intimates, not only that he was liable to the common infirmities of human nature, but that, by his natural temper, he was a man of strong passions, more hot and eager than most men, and therefore the more fit to deal…
Read the whole note in the consoleJamieson-Fausset-Brown on 1 Kings 17:2
the word of the Lord came unto him, saying, Get thee hence, and turn thee eastward, &c.--At first the king may have spurned the prediction as the utterance of a vain enthusiast; but when he found the drought did last and increase in severity, he sought Elijah, who, as it was necessary that he should be far removed from either the violence or the importunities of the king, was divinely directed to repair to a place of retreat, perhaps a cave on "the brook Cherith, that is, before [east of] Jordan." Tradition points it out in a small winter torrent, a little below the ford at Beth-shan.
Adam Clarke on 1 Kings 17:4
I have commanded the ravens to feed thee - Thou shalt not lack the necessaries of life; thou shalt be supplied by an especial providence.
See more on this subject at the end of the chapter, Kg1 17:24 (note).
John Gill on 1 Kings 17:5
So he went, and did according to the word of the Lord,.... Took his journey eastward, and hid himself in the place directed to:
for he went and dwelt by the brook Cherith, that is before Jordan; see Gill on 1 Kings 17:3.
Keil & Delitzsch on 1 Kings 17:2-6