Son of man, take a stick, and write on it, 'For Judah, and the children of Israel, his companions'; then take another stick, and write on it, 'For Joseph, the stick of Ephraim, and all the house of Israel, his companions.'
vayigash “Then Judah approached him”
Genesis 44:18 - 47:27
Joseph finally could not restrain himself. He sent his servants away and gathered his brothers around him and declared to them his true identity proving this by exposing his circumcised penis.