Ruth 2:17
So she gleaned in the field until even, and beat out that she had gleaned: and it was about an ephah of barley.
Cross-reference
Exodus 16:36
Historical context
Exodus 16:36 defines the omer as a tenth of an ephah — clarifying the amount Ruth gleaned (about an ephah).
Ezekiel 45:11
Historical context
Ezekiel 45:11 standardizes the ephah as a tenth of a homer — providing context for the amount Ruth gleaned.
Proverbs 31:27
Parallel
Proverbs 31:27 describes a woman who avoids idleness — Ruth's long day of gleaning and beating out grain exemplifies this diligent character.