Deuteronomy 21:16
then it shall be in the day when he makes his sons to inherit what he has, he may not cause to inherit the son of the beloved first-born before the son of the hated one, he who is truly the first-born.
1 Chronicles 26:10
Also to Hosah, of the sons of Merari, were sons: Simri was the chief (though not the first-born, yet his father made him the chief),
1 Chronicles 5:2
For Judah prevailed among his brothers, and from him came the chief ruler, but the birthright was Joseph's);
2 Chronicles 11:19-22
who bore him sons, Jeush, and Shamariah, and Zaham.
2 Chronicles 21:3
And their father gave them great gifts of silver and of gold and of precious things, with fortified cities in Judah. But the kingdom he gave to Jehoram, because he was the first-born.
Romans 8:29
For whom He foreknew, He also predestinated to be conformed to the image of His Son, for Him to be the First-born among many brothers.
Philippians 4:8
Finally, my brothers, whatever things are true, whatever things are honest, whatever things are right, 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 on these things.
Hebrews 12:16-17
(lest there be any fornicator, or profane person like Esau, who for one morsel of food sold his birthright.