etad brūhi mahān kāmo
mahyaṁ śuśrūṣave pitaḥ
na hi gopyaṁ hi sadhūnāṁ
kṛtyaṁ sarvātmanām iha
asty asva-para-dṛṣṭīnām
amitrodāsta-vidviṣām
etat - this; brūhi - please speak; mahān - great; kāmaḥ - desire; mahyam - to Me; śuśrūṣave - who am ready to hear faithfully; pitaḥ - 0 father; na - not; hi - indeed; gopyam - to be kept secret; hi - certainly; sādhūnām - of saintly persons; kṛtyam - the activities; sarva-ātmanām - who see everyone as equal to themselves; iha - in this world; asti - there is; asva-para-dṛṣṭīnām - who do not distinguish between what is their own and what is another's; amitra-udāsta-vidviṣām - who do not distinguish between friends, neutral parties and enemies.
Lord Kṛṣṇa’s father might have thought that his son was a mere child and thus could not properly question the validity of a Vedic sacrifice. But the Lord’s clever statement here would certainly have convinced Nanda that Śrī Kṛṣṇa was making a serious, not a whimsical, inquiry and that a serious answer should thus be given.