labor of love

labor of love idiom
Work done for one's satisfaction rather than monetary reward. For example, The research took three years but it was a labor of love. This expression appears twice in the New Testament (Hebrews 6:10, Thessalonians 1:3), referring to those who do God's work as a labor of love. [c. 1600]

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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