He caused water to descend from heaven and it flowed into valleys according to their measure. Then, the flood bears away the froth. And from what they kindle in a fire, looking for glitter or sustenance, there is a froth the like of it. Thus, God compares The Truth and falsehood. Then, as for the froth, it goes as swelling scum while what profits humanity abides on the earth. Thus, God propounds parables.