tumi jāna - you know; kṛṣṇa - Lord Kṛṣṇa; nija-pratijñā - His own promise; chāḍilā - gave up; bhakta kṛpā-vaśe - being obliged by the devotional service of a devotee; bhīṣmera - of Grandfather Bhīṣma; pratijñā rākhilā - kept the promise.

“You should know that Lord Kṛṣṇa Himself violated His own promise just to keep the promise of Grandfather Bhīṣma.