apologize for
To express regret or remorse for something. If you would just apologize for lying, we can all move on and forget about it. I will never apologize for my religious beliefs.
apologize (to someone) for (someone)
to make an apology to someone for someone else's actions. Would you please apologize to Wally for Tom? I apologized for Frank to the hostess. I had to apologize for Frank. I had to apologize to the hostess. He was never able to apologize to himself for his past errors.