Genesis 44:8
Behold, the money, which we found in our sacks’ mouths, we brought again unto thee out of the land of Canaan: how then should we steal out of thy lord’s house silver or gold? Behold, the money, which we found in our sacks’ mouths, we brought again unto thee out of the land of Canaan: how then should we steal out of thy lord’s house silver or gold?
The words belong to Joseph's testing of his brothers in Egypt after they came to buy grain during the famine, when their claim to be true men was being put to the proof of character.
Accused of theft, the brothers answer by appealing to their earlier honesty in returning the money they had found in their sacks, offering that honest act as evidence of their innocence. They argue that because they brought that money back, it proves they would not steal silver or gold, setting their past conduct against the present accusation.
They stress that they had carried that money back all the way from the land of Canaan. The immediate charge they are answering with this defense is the stealing of the silver cup.