"If they sought to intimidate us, to terrorize us ... it should be pretty clear right now that they picked the wrong city to do it," Obama said.
The president spoke at an interfaith service in Boston honoring the three people killed and more than 170 injured when a pair of bombs ripped through the crowd gathered Monday afternoon near the finish line of the famous race.
"We may be momentarily knocked off our feet," Obama said. "But we'll pick ourselves up. We'll keep going. We will finish the race."
Matthew Healey / Landov
Obama spoke as his second-term as president is increasingly burdened by terror, politics, and disaster. In the aftermath of Boston's deadly blasts Monday, Obama lost a fight for gun control measures in the Senate, was the target, along with a U.S. senator, of letters that showed traces of poisonous ricin, and awoke Thursday to news of a powerful fertilizer plant explosion that devastated a small Texas town.
Obama and his wife, Michelle, joined a crowd at the Cathedral of the Holy Cross for a "Healing Our City" service. The Obamas sat at the front of the church next to Massachusetts Gov. Deval Patrick as the service began. Bradley Cooper, in town filming his latest movie, was also spotted attending the services.