Cleanliness is next to godliness - Cultural Definition
The New Dictionary of Cultural Literacy Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cleanliness is a great virtue.
cleanliness is next to godliness - Phrases/Idioms
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.
Being clean is a sign of spiritual purity or goodness, as in Don't forget to wash your ears—cleanliness is next to godliness. This phrase was first recorded in a sermon by John Wesley in 1778, but the idea is ancient, found in Babylonian and Hebrew religious tracts. It is still invoked, often as an admonition to wash or clean up.