A fifth grade teacher at a Big Apple private school was suspended after unhinged online ramblings that included a warning to CUNY City College that “none of you Jew bastards are safe,” prosecutors and sources said.

Joshua Penn, 39, made the raging post after an interfaith event on campus turned chaotic when a Muslim speaker hatefully singled out a “Zionist” in attendance — and allegedly sent DMS to City College’s Instagram page threatening controversial self-described imam Abdullah Mady, according to a criminal complaint and law enforcement sources.

The Manhattan resident teaches at the Corlears School and has since been placed on administrative leave, the school’s leader confirmed to The Post Tuesday.

Penn teaches 5th grade at an NYC private school. Corlears School

Penn was busted

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