Genesis 25:30

And Esau said to Jacob, Feed me, I pray thee, with that same red pottage; for I am faint: therefore was his name called Edom.

Cross-reference

Genesis 25:34 concludes this scene: Esau ate, drank, and despised his birthright. His impulsive request for the red stew leads directly to this reckless trade.

Genesis 36:1 identifies Esau as Edom — the nickname given here because of the red ('edom') stew he demanded. This verse is the origin of that national identity.

Genesis 36:9 identifies Esau as 'father of the Edomites' — the nation named from this moment when he traded his birthright for red stew.

Genesis 32:3 Historical context

Genesis 32:3 sends Jacob toward Esau in Edom — approaching his brother whose nation took its name from this red stew moment.

Deuteronomy 23:7 Historical context

Deuteronomy 23:7 commands 'Do not abhor an Edomite, for he is your brother' — affirming the Esau-Jacob kinship despite this rivalry.