1 Chronicles 5:1-2

1Reuben was Israel's firstborn son. That is, Reuben was born first. But he had sex with his father's slave wife. So his father took away the benefits that belong to a firstborn son. Instead, Israel gave those benefits to his son Joseph's sons. So Reuben does not have the first place in the list of Israel's sons.

2Judah became stronger than all his brothers. Israel's ruler came from his tribe. But it was Joseph who received the benefits that belong to the firstborn son.