John Gill Commentary 2 Kings 8:1

"Now Elisha had spoken unto the woman, whose son he had restored to life, saying, Arise, and go thou and thy household, and sojourn wheresoever thou canst sojourn: for Jehovah hath called for a famine; and it shall also come upon the land seven years." — 2 Kings 8:1 (ASV)

Then spoke Elisha unto the woman (whose son he had restored
to life)
His hostess at Shunem, (2 Kings 4:8–17) the following he said to her, not after the famine in Samaria, but before it, as some circumstances show:

saying, arise, and go you and your household, and sojourn wheresoever
you can sojourn ;
with the greatest safety to her person and property, and with the least danger to her moral and religious character:

for the Lord has called for a famine, and it shall also come upon the
land seven years :
which Jarchi says was the famine that was in the days of Joel; it was, undoubtedly, on account of the idolatry of Israel, and was double the time of that in the days of Elijah.