A contract of pledge gives a right to the creditor to retain the thing in his possession or in that of the third person to whom it may have been delivered until his credit is paid.
If, while the creditor retains the pledge, the debtor should contract with him another debt demandable before the first one has been paid, the former may extend the retention until both credits are paid him, even should it not have been stipulated that the pledge should be subject to the security for the second debt.
History —Civil Code, 1930, § 1765.