And when Esau heard the words of his father, he cried with a great and exceeding bitter cry—literally, he cried a cry, great and bitter exceedingly; expressive of the poignant anguish of his soul (Kalisch, Bush), if not also of his rage against his brother (Philo, Eusebius), of his envy of the blessing (Menochius, Lapide), and of the desperation of his spirit (Calvin).
Cf. Hebrews 12:17—and said unto his father, Bless me, even me also, O my father. A proof of Esau's blind incredulity in imagining it to be within his father's power to impart benedictions promiscuously without and beyond the Divine sanction (Calvin); a sign that he supposed the theocratic blessing capable of division, and as dependent upon his lamentations and prayers as upon the caprice of his father (Lange); an evidence that "now at last he had learned in some measure adequately to value" the birthing?
(Candlish); but if so it was post horam.