Genesis 43:3

And Judah spake unto him, saying, The man did solemnly protest unto us, saying, Ye shall not see my face except your brother be with you. There was a reason for the solemn testifying of Joseph, since he was so anxious to see his full brother, the only other son of his mother Rachel. Judah here steps to the front, Reuben having already failed, and Levi having lost the confidence of his father on account of the affair at Shechem. Judah's attitude is gentle, but firm, and shows an unselfish devotion.