How could Isaac love Esau more than Jacob, who devoted himself to Torah study?

This Torah study examines the question: How could Isaac love Esau more than Jacob, who devoted himself to Torah study? The canonical Hebrew discussion develops the issue through the weekly Torah portion and the sources cited there, preserving the distinctions, tensions and practical implications that belong to the source itself. This localized layer is designed for study and discovery; it does not add a new halakhic, medical, legal, historical or empirical ruling beyond the canonical Hebrew source.