New Revised Standard Version
Jacob said, “Swear to me first.” So he swore to him, and sold his birthright to Jacob.

Contemporary English Version
But Jacob said, "Promise me your birthrights, here and now!" And that's what Esau did.

New American Bible
But Jacob said, “Swear to me first!” So he sold Jacob his right as firstborn under oath.

Douay-Rheims Bible
Jacob said: Swear therefore to me. Esau swore to him, and sold his first birthright.

Jacob said: Swear therefore to me. Esau swore to him, and sold his first birthright.

Swear.

Genesis 14:22 And he answered him: I lift up my hand to the Lord God the most high, the possessor of heaven and earth,

Genesis 24:3 That I may make thee swear by the Lord, the God of heaven and earth, that thou take not a wife for my son, of the daughters of the Chanaanites, among whom I dwell:

Mark 6:23 And he swore to her: Whatsoever thou shalt ask I will give thee, though it be the half of my kingdom.

Hebrews 6:16 For men swear by one greater than themselves: and an oath for confirmation is the end of all their controversy.

and he sold.

Genesis 27:36 But he said again: Rightly is his name called Jacob; for he hath supplanted me lo this second time: My birthright he took away before, and now this second time he hath stolen away my blessing. And again he said to his father: Hast thou not reserved me also a blessing?

Genesis 36:6,7 And Esau took his wives, and his sons and daughters, and every soul of his house, and his substance, and cattle, and all that he was able to acquire in the land of Chanaan: and went into another country, and departed from his brother Jacob. . . .

Hebrews 12:16 Lest there be any fornicator or profane person, as Esau who for one mess sold his first birthright.