Glenn Beck gave a lengthily apology on his radio show, on Thursday, following his comment made on Tuesday. Beck had compared Reform Judaism to radicalized Islam.

During his six-minute apology he said "I’ve always told you to do your own homework, and in this case, I didn’t do enough homework…I made one of the worst analogies of all time. And I knew it when I said it,” …Here I am talking about Judaism and I start comparing Islamic extremism. It was a nightmare.”

The Anti-Defamation League and other Jewish organizations had immediately rebuked Beck for his remarks after Tuesday's show.

Glenn BeckFOX NEWS