Bava Metzia 3 - Borrower Admits Loan In Part (Finds)

If one says, "You owe me $100," and the borrower admits to owing $50, the borrower has to repeat his statement under oath and pay $50. 

There is a presumption that people are not brazen to deny a loan outright since the creditor did them a favor. Likely, the borrower would like to repay but doesn't have the complete amount, so he admits to a part, thinking of repaying the rest later. So, the Torah imposed an oath to force him to tell the truth. Likewise, if witnesses testified that the borrower owes part of the loan, he has to take an oath for the rest.

Art: A Private Letter by Robert W. Wright

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