2 and though Judah was the strongest of his brothers and a ruler came from him, the rights of the firstborn belonged to Joseph)—

Read 1 Chronicles 5:2 Using Other Translations

For Judah prevailed above his brethren, and of him came the chief ruler; but the birthright was Joseph's:)
though Judah became strong among his brothers and a chief came from him, yet the birthright belonged to Joseph),
The descendants of Judah became the most powerful tribe and provided a ruler for the nation, but the birthright belonged to Joseph.