But if you turn your back, know that you just missed your chance
To witness the realest shit that's ever been told to man

from Kendrick Lamar (Ft. BJ The Chicago Kid & Punch) – Faith Lyrics on Rap Genius

Meaning

Kendrick may be pissy drunk, but the message is not diluted. He is a sinner, but if you let that stand in the way of listening to his message, you will miss out on him spitting the truth about faith.

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