By the word of the Lord

Now Elisha had said to the woman whose son he had given back to life, Go now, with all the people of your house, and get a living-place for yourselves wherever you are able; for by the word of the Lord, there will be great need of food in the land; and this will go on for seven years.
2 Kings 8:1

God’s word is fulfilled

Then Elisha said, Give ear to the word of the Lord: the Lord says, Tomorrow, about this time, a measure of good meal will be offered for the price of a shekel and two measures of barley for a shekel, in the market-place of Samaria.
2 Kings 7:1

Then the people went out and took the goods from the tents of the Aramaeans. So a measure of good meal was to be had for the price of a shekel, and two measures of barley for a shekel, as the Lord had said.
2 Kings 7:16