2 Kings 7:20 Meaning

18And it came to pass as the man of God had spoken to the king, saying, Two measures of barley for a shekel, and a measure of fine flour for a shekel, shall be to morrow about this time in the gate of Samaria:

19And that lord answered the man of God, and said, Now, behold, if the LORD should make windows in heaven, might such a thing be? And he said, Behold, thou shalt see it with thine eyes, but shalt not eat thereof.

20And so it fell out unto him: for the people trode upon him in the gate, and he died.