Genesis 44:15,16 (KJV)
15 And Joseph said unto them, What deed is this that ye have done? wot ye not that such a man as I can certainly divine?
16 And Judah said, What shall we say unto my lord? what shall we speak? or how shall we clear ourselves? God hath found out the iniquity of thy servants: behold, we are my lord’s servants, both we, and he also with whom the cup is found.