"Because the white Jews (know) that the Negroes are the real Children of Israel and to keep America's secret the Jews will blackmail America. (They) will extort America, their plan for world domination won't work if the Negroes know who they were," read the highlighted portion of the quote.
"The white citizens of America will be terrified to know that all this time they've been mistreating and discriminating and lynching the Children of Israel."
The attribution of the quote to Hitler has been widely discredited.
Jackson later apologized and reposted part of the quote with the majority of the page blacked out.
"Anyone who feels I have hate towards the Jewish community took my post the wrong way," the 33-year-old wrote. "I have no hatred in my heart towards no one!"
Jackson also made two posts - one on Saturday and one on Monday - about Louis Farrakhan, the controversial leader of the Nation of Islam. Both posts were deleted Tuesday.
The Eagles addressed Jackson's posts in a statement Tuesday, saying they were "not condoned or supported in any way by the organization."
"We are continuing to evaluate the circumstances and will take appropriate action," the team added.
Shortly after the Eagles released their statement, Jackson posted a follow-up apology.
"I probably should've never posted anything Hitler did, because Hitler was a bad person and I know that," Jackson said. "I was just trying to uplift African Americans ... and just enlighten my people.
"So, on behalf of myself, I just want to let you guys know I apologize, I didn't intend any harm or any hatred to any people."
Former Eagles president Joe Banner was among those who criticized Jackson, calling for Philadelphia to consider cutting the veteran: