SB 7.1.31
gopyah kamad bhayat kamso
dvesac caidyadayo nrpah
sambandhad vrsnayah snehad
yuyam bhaktya vayam vibho
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
My dear King Yudhisthira, the gopis by their lusty desires, Kamsa by his fear, Sisupala and other kings by envy, the Yadus by their familial relationship with Krsna, you Pandavas by your great affection for Krsna, and we, the general devotees, by our devotional service, have obtained the mercy of Krsna.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Different persons achieve different types of mukti — sayujya, salokya, sarupya, samipya and sarsti — according to their own intense desire, which is called bhava. Thus it is described here that the gopis, by their lusty desires, which were based upon their intense love for Krsna, became the most beloved devotees of the Lord. Although the gopis at Vrndavana expressed their lusty desires in relationship with a paramour (parakiya-rasa), they actually had no lusty desires. This is significant of spiritual advancement. Their desires appeared lusty, but actually they were not the lusty desires of the material world. Caitanya-caritamrta compares the desires of the spiritual and material world to gold and iron. Both gold and iron are metal, but there is a vast difference in their value. The lusty desires of the gopis for Krsna are compared to gold, and material lusty desires are compared to iron.
Kamsa and other enemies of Krsna merged into the existence of Brahman, but why should Krsna’s friends and devotees have the same position? Krsna’s devotees attain the association of the Lord as His constant companions, either in Vrndavana or in the Vaikuntha planets. Similarly, although Narada Muni wanders in the three worlds, he has exalted devotion for Narayana (aisvaryaman). The Vrsnis and Yadus and the father and mother of Krsna in Vrndavana all have familial relationships with Krsna; Krsna’s foster father and mother in Vrndavana, however, are more exalted than Vasudeva and Devaki.