Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 32
Sanskrit:
निमज्ज्योन्मज्जतां घोरे भवाब्धौ परमायणम् ।सन्तो ब्रह्मविद: शान्ता नौर्दृढेवाप्सु मज्जताम् ॥ ३२ ॥
ITRANS:
nimajjyonmajjatāṁ ghorebhavābdhau paramāyaṇamsanto brahma-vidaḥ śāntānaur dṛḍhevāpsu majjatām
Translation:
The devotees of the Lord, peacefully fixed in absolute knowledge, are the ultimate shelter for those who are repeatedly rising and falling within the fearful ocean of material life. Such devotees are just like a strong boat that comes to rescue persons who are at the point of drowning.