Śrīmad-Bhāgavatam · Text 10.8.18
Who is speaking and story frame
य एतस्मिन् महाभागा: प्रीतिं कुर्वन्ति मानवा: ।
नारयोऽभिभवन्त्येतान् विष्णुपक्षानिवासुरा: ॥ १८ ॥
ya etasmin mahā-bhāgāḥ
prītiṁ kurvanti mānavāḥ
nārayo ’bhibhavanty etān
viṣṇu-pakṣān ivāsurāḥ
Demons [asuras] cannot harm the demigods, who always have Lord Viṣṇu on their side. Similarly, any person or group attached to Kṛṣṇa is extremely fortunate. Because such persons are very much affectionate toward Kṛṣṇa, they cannot be defeated by demons like the associates of Kaṁsa [or by the internal enemies, the senses].
Read this verse on Vedabase.ioThis verse has no purport; its meaning is explained by the verses around it.