Deuteronomy 22:2
And if thy brother be not nigh unto thee, or if thou know him not, then thou shalt bring it unto thine own house, and it shall be with thee until thy brother seek after it, and thou shalt restore it to him again.
Cross-references
Matthew 7:12
Parallel
Matthew 7:12, the Golden Rule, is exemplified here: keep your neighbor's lost property safe as you'd want done for you.
2 Kings 8:6
Historical context
In 2 Kings 8:6, the king restores the Shunammite's property—a narrative example of the lost property law in action.