"'They sow the wind and reap the whirlwind. The stalk has no head; it will produce no flour. Were it to yield grain, foreigners would swallow it up. Israel is swallowed up; now she is among the nations like a worthless thing. For they have gone up to Assyria like a wild donkey wandering alone. Ephraim has sold herself to lovers.'" NIV translation
This passage speaks of famine and the enemy that is assigned to carry out God's judgment (Assyria). Israel went to them and tried to buy them off but it did not work. Israel is described as worthless because she has become like the nations that surround her and the same principle applies to us, as Christians, in the world today. We are called to be different and not a part of the world and its ways. Many have taken this to mean withdrawing from the world and that is how many cults have been formed but that is not what it is saying. We are called to be a bright and shining example to the world. In order to do this, we must be different but we must also be visible and not tucked away like some crazy cult.