Here is a class I gave in India last January for a course at the Mayapur Institute for Higher Education. I spoke on this verse from the Bhagavad-gita (9.30):
api cet su-duracaro
bhajate mam ananya-bhak
sadhur eva sa mantavyah
samyag vyavasito hi sah
“Even if one commits the most abominable action, if he is engaged in devotional service he is to be considered saintly because he is properly situated in his determination.”
The class was held on a lawn outside a classroom, with children playing nearby and men doing construction with hammers and saws. The recording has been cleaned up (imperfectly) to cut the heavy noise.