1 Chronicles 8:30NET Bible

Genesis 4:4

But Abel brought some of the firstborn of his flock--even the fattest of them. And the LORD was pleased with Abel and his offering,

Genesis 10:15

Canaan was the father of Sidon his firstborn, Heth,

Genesis 22:21

Uz the firstborn, his brother Buz, Kemuel (the father of Aram),

Genesis 25:13

These are the names of Ishmael's sons, by their names according to their records: Nebaioth (Ishmael's firstborn), Kedar, Adbeel, Mibsam,

Genesis 27:19

Jacob said to his father, "I am Esau, your firstborn. I've done as you told me. Now sit up and eat some of my wild game so that you can bless me."