Sunday school don’t make you cool forever.

On its face, the line contrasts early moral or religious instruction (“Sunday school”) with the shifting standards of social status (“cool”). It suggests that childhood piety or institutional respectability is not a permanent shield against later judgment, temptation, or irrelevance—“cool” is contingent, time-bound, and culturally negotiated. Read in a Sly Stone–adjacent register, it can also be heard as a skeptical, streetwise reminder that virtue-signaling and upbringing don’t automatically translate into enduring authenticity or credibility. The phrasing’s bluntness implies a hard-earned lesson: identity and reputation must be lived and renewed, not inherited from formative rituals.