One verse

Srimad Bhagavatam 9.9.13

9.9.13

भस्मीभूताङ्गसङ्गेन स्वर्याता: सगरात्मजा: । किं पुन: श्रद्धया देवीं सेवन्ते ये धृतव्रता: ॥ १३ ॥

bhasmibhutanga-sangena svar yatah sagaratmajah kim punah sraddhaya devim sevante ye dhrta-vratah

bhasmibhuta-anga
by the body which had been burnt to ashes
sangena
by contacting the water of the Ganges
svah yatah
went to the heavenly planes
sagara-atmajah
the sons of Sagara
kim
what to speak of
punah
again
sraddhaya
with faith and devotion
devim
unto mother Ganges
sevante
worship
ye
those persons who
dhrta-vratah
with vows of determination.

Simply by having water from the Ganges come in contact with the ashes of their burnt bodies, the sons of Sagara Maharaja were elevated to the heavenly planes. Therefore, what is to be said of a devotee who worships mother Ganges faithfully with a determined vow? One can only imagine the benefit that accrues to such a devotee.