Q. A gave a pledge to B telling him that it was a Gentile's pledge, and that he would allow B to collect the interest on the loan he had extended to the Gentile if B would refund him the principal of that loan. B gave him the money and took the pledge as security. Subsequently, A told B that he was not entitled to any interest since the pledge belonged to a Jew, and that he had previously lied to him concerning the original owner of the pledge. A. B may insist that he believes A's first statement only, even if A is ready to take an oath as to the truth of his second statement. Therefore, if A gave the pledge to B at the time B gave him the money, B may keep the pledge until A pays him the promised interest. SOURCES: Pr. 142; Rashba I, 858; Mord. B.M. 338, Cf. L. 448.