2 Kings 7:1

Then Elisha said, Hear ye the word of the LORD; Thus saith the LORD, To morrow about this time shall a measure of fine flour be sold for a shekel, and two measures of barley for a shekel, in the gate of Samaria.

Elisha's word promised that by about the same hour on the next day a measure of fine flour would sell for a shekel and two measures of barley for a shekel in the gate of Samaria, which meant food at ordinary prices in spite of the city's severe famine. The promise was fulfilled when the Syrians fled in fear and left abundant food behind in their camp, and that sudden supply drove the prices of flour and barley down to exactly the level foretold. That outcome made known to the surrounding nations that the word of the Lord spoken through Elisha was true.