And she went and did according to the saying of Elijah: and she, and he, and her house, did eat {h} many days.

(h) That is, till he had rain and food on the earth.

Wesley's Notes

17:15 Many days - A long time, even above two years, before the following event about her son happened. And surely the increase of her faith to such a degree, as to enable her thus to deny herself and trust the promise, was as great a miracle in the kingdom of grace, as the increase of her oil in the kingdom of providence. Happy are they who can thus against hope believe and obey in hope.

King James Translators' Notes

many...: or, a full year

Matthew Henry's Concise Commentary

17:8-16 Many widows were in Israel in the days of Elias, and some, it is likely, would have bidden him welcome to their houses; yet he is sent to honour and bless with his presence a city of Sidon, a Gentile city, and so becomes the first prophet of the Gentiles. Jezebel was Elijah's greatest enemy; yet, to show her how powerless was her malice, God will find a hiding-place for him even in her own country. The person appointed to entertain Elijah is not one of the rich or great men of Sidon; but a poor widow woman, in want, and desolate, is made both able and willing to sustain him. It is God's way, and it is his glory, to make use of, and put honour upon, the weak and foolish things of the world. O woman, great was thy faith; one has not found the like, no not in Israel. She took the prophet's word, that she should not lose by it. Those who can venture upon the promise of God, will make no difficulty to expose and empty themselves in his service, by giving him his part first. Surely the increase of this widow's faith, so as to enable her thus readily to deny herself, and to depend upon the Divine promise, was as great a miracle in the kingdom of grace, as the increase of her meal and oil in the kingdom of providence. Happy are all who can thus, against hope, believe and obey in hope. One poor meal's meat this poor widow gave the prophet; in recompence of it, she and her son did eat above two years, in a time of famine. To have food from God's special favour, and in such good company as Elijah, made it more than doubly sweet. It is promised to those who trust in God, that they shall not be ashamed in evil time; in days of famine they shall be satisfied.