Adam Clarke on 2 Kings 8:1

Then spake Elisha - As this is the relation of an event far past, the words should be translated, "But Elisha had spoken unto the woman whose son he had restored unto life; and the woman had arisen, and acted according to the saying of the man of God, and had gone with her family, and had sojourned in the land of the Philistines seven years." What is mentioned in these two verses happened several years before the time specified in the third verse. See the observations at the end of the preceding chapter, 2Kgs 7:17 (note).