16 then it shall be, in the day that he causes his sons to inherit that which he has, that he may not give the son of the beloved the rights of the firstborn before the son of the hated, who is the firstborn;
Deuteronomy 21:16 Cross References - WEB
1 Chronicles 5:2
2 For Judah prevailed above his brothers, and from him came the prince; but the birthright was Joseph’s)—
1 Chronicles 26:10
10 Also Hosah, of the children of Merari, had sons: Shimri the chief (for though he was not the firstborn, yet his father made him chief),
2 Chronicles 11:19-22
19 She bore him sons: Jeush, Shemariah, and Zaham.
20 After her, he took Maacah the daughter of Absalom; and she bore him Abijah, Attai, Ziza, and Shelomith.
21 Rehoboam loved Maacah the daughter of Absalom above all his wives and his concubines; for he took eighteen wives and sixty concubines, and became the father of twenty-eight sons and sixty daughters.
22 Rehoboam appointed Abijah the son of Maacah to be chief, the prince among his brothers; for he intended to make him king.
2 Chronicles 21:3
3 Their father gave them great gifts of silver, of gold, and of precious things, with fortified cities in Judah; but he gave the kingdom to Jehoram, because he was the firstborn.
Romans 8:29
29 For whom he foreknew, he also predestined to be conformed to the image of his Son, that he might be the firstborn among many brothers.
Philippians 4:8
8 Finally, brothers, whatever things are true, whatever things are honorable, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report: if there is any virtue and if there is any praise, think about these things.