"The government gives them the drugs, builds bigger prisons, passes a three-strike law and then wants us to sing 'God Bless America.' No, no, no, God damn America, that's in the Bible for killing innocent people," he said in a 2003 sermon. "God damn America for treating our citizens as less than human. God damn America for as long as she acts like she is God and she is supreme."
In addition to damning America, he told his congregation on the Sunday after Sept. 11, 2001 that the United States had brought on al Qaeda's attacks because of its own terrorism.
"We bombed Hiroshima, we bombed Nagasaki, and we nuked far more than the thousands in New York and the Pentagon, and we never batted an eye," Rev. Wright said in a sermon on Sept. 16, 2001.
"We have supported state terrorism against the Palestinians and black South Africans, and now we are indignant because the stuff we have done overseas is now brought right back to our own front yards. America's chickens are coming home to roost," he told his congregation.
Sen. Obama told the New York Times he was not at the church on the day of Rev. Wright's 9/11 sermon. "The violence of 9/11 was inexcusable and without justification," Obama said in a recent interview. "It sounds like he was trying to be provocative," Obama told the paper.
Rev. Wright, who announced his retirement last month, has built a large and loyal following at his church with his mesmerizing sermons, mixing traditional spiritual content and his views on contemporary issues and is considered one of the country's 10 most influential black pastors, according to members of the Obama campaign.
In a statement to ABCNews.com Thursday, Obama's press spokesman Bill Burton said, "Sen. Obama has said repeatedly that personal attacks such as this have no place in this campaign or our politics, whether they're offered from a platform at a rally or the pulpit of a church. Sen. Obama does not think of the pastor of his church in political terms. Like a member of his family, there are things he says with which Sen. Obama deeply disagrees. But now that he is retired, that doesn't detract from Sen. Obama's affection for Rev. Wright or his appreciation for the good works he has done."
ABC News' Sunlen Miller contributed to this report.