CHICAGO — Barack Obama celebrated Father's Day by calling on black fathers, who he said are "missing from too many lives and too many homes," to become active in raising their children.

"They have abandoned their responsibilities, acting like boys instead of men. And the foundations of our families are weaker because of it," the Democratic presidential candidate said yesterday at a largely black church in his hometown.

Reminding the congregation of his firsthand experience growing up without a father, Obama said he was lucky to have loving grandparents who helped his mother. He got support, second chances and scholarships that helped him get an education. Obama's father left when he was 2 years old.

"I resolved many years ago that it was my obligation to break the cycle — that if I could be anything in life, I would be a good father to my girls," added Obama, whose daughters, Sasha and Malia, and his wife, Michelle, watched from the audience.

Obama's appearance at the Apostolic Church of God was his first address to a church since he ended his membership at Trinity United Church of Christ, where he had worshipped for 20 years, following inflammatory remarks there by his former longtime pastor and others.

Obama often speaks about the importance of parental involvement. In Washington, he's sponsoring legislation to get more child support money to children by offering a tax credit for fathers who pay support, more efficient collection and penalties for fathers who don't meet their obligations.

Obama urged black parents to demand the best from themselves and their children.

"Any fool can have a child. That doesn't make you a father," Obama said. "It's the courage to raise a child that makes you a father."