SB 12.3.51
kaler dosa-nidhe rajann
asti hy eko mahan gunah
kirtanad eva krsnasya
mukta-sangah param vrajet
Translation:
My dear King, although Kali-yuga is an ocean of faults, there is still one good quality about this age: Simply by chanting the Hare Krsna maha-mantra, one can become free from material bondage and be promoted to the transcendental kingdom.
Purport:
After mentioning the innumerable faults of this Age of Kali, Sukadeva Gosvami now mentions its one brilliant aspect. Just as one powerful king can kill innumerable thieves, one brilliant spiritual quality can destroy all the contamination of this age. It is impossible to overestimate the importance of chanting Hare Krsna, Hare Krsna, Krsna Krsna, Hare Hare/ Hare Rama, Hare Rama, Rama Rama, Hare Hare, especially in this fallen age.