Those who have taken to Kṛṣṇa consciousness seriously, even there are some faults, still, they are saintly persons. That is the recommendation of Kṛṣṇa. Because that fault may be due to his past habits, but that is being stopped. Just like you make the switch off, no more electric current will act, but the fan still gives some rounds due to the past force.
-691226 - Lecture Initiation - Boston

तच्छ्रद्दधाना मुनयो ज्ञानवैराग्ययुक्तया ।
पश्यन्त्यात्मनि चात्मानं भक्त्या श्रुतगृहीतया ॥ १२ ॥
The seriously inquisitive student or sage, well equipped with knowledge and detachment, realizes that Absolute Truth by rendering devotional service in terms of what he has heard from the Vedānta-śruti.
-Shrimad Bhagvatam Canto 1 Chapter 2 Verse 12