Mahabharata 5.77.5

अहं हि तत्करिष्यामि परं पुरुषकारतःदैवं तु न मया शक्यं कर्म कर्तुं कथंचन

ahaṃ hi tatkariṣyāmi paraṃ puruṣakārataḥdaivaṃ tu na mayā śakyaṃ karma kartuṃ kathaṃcana

Our plain-language meaning of this verse is waiting for scholar review.