build on sand


Use an unstable foundation, as in If you buy nothing but high-risk stocks, your portfolio will be built on sand. This metaphor appears in the New Testament, where Jesus likens those who do not heed his sayings to a foolish man who builds his house on sand, which then is washed away by rain, flood, and wind (Matthew 7:24–27). [c. 1600]

QUIZZES

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Question 1 of 9
You may have read the word "simmer" in a recipe or two, but what does it really mean?
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.