'Boiling' in the Bible

Jacob had cooked [reddish-brown lentil] stew [one day], when Esau came from the field and was famished;

“But unstable and reckless and boiling over like water [in sinful lust], you shall not excel or have the preeminence [of the firstborn],Because you went up to your father’s bed [with Bilhah];You defiled it—he went up to my couch.