Kyrie Irving plays for the Brooklyn Nets for the first time since November.
He was suspended after posting a link to a documentary with antisemitic material.
Irving says he doesn't stand for "hate speech or anything that is going against the human race".
The Nets beat the Memphis Grizzlies 127-115; Irving scored 14 points.
The group's website says its mission is to "wake up the 12 Tribes of Israel".
Members of the National Basketball Players Association were at shootaround and the Nets' game.
Kyrie Irving: "I meant no harm to any person, to any group of people and yeah, this is a big moment for me".
Irving was suspended by the Brooklyn Nets after he posted a link to a documentary on his Twitter page.
The team praised him Sunday for steps he has taken to clarify his religious beliefs.
He missed many games last season because he refused to get vaccinated against an infectious disease.