When must one stand in honor of an elderly convert: after seventy years from birth, or seventy years from conversion?

This source-based Torah study examines the question: When must one stand in honor of an elderly convert: after seventy years from birth, or seventy years from conversion? The canonical Hebrew discussion develops the issue through the weekly Torah portion and the sources cited there, preserving the distinctions, tensions, and practical implications of the original text. This localized discovery layer does not add any new halakhic, medical, legal, scientific, historical, theological, or empirical ruling or claim beyond the canonical Hebrew source.