There was a famine of the word in the Old Testament, thats when the Israelites were spiritually starved because God wouldnt speak to them for about 400 years or so, and they werent actively reading their scriptures and following His commandments. See Amos 8:11. People were going after idols. Then Jesus came and he opened up scriptures to them. He would show them everything Moses had set down, was talking about Him.