do as I say

do as I say idiom
Obey my instructions, as in Never mind about the other mothers—you do as I say. This admonitory order is sometimes followed by a self-deprecating phrase, Do as I say, not as I do, meaning “don't imitate my behavior but obey my instructions.” This order first appeared in John Selden's Table-Talk (c. 1654): “Preachers say, 'Do as I say, not as I do.'”

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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