President Barack Obama delivered a eulogy for Rev. Clementa Pinckney—the pastor and state senator killed, along with eight others, in the Emanuel AME Church shooting in Charleston, South Carolina. At ...

While Barack Obama had a seasoned group of speechwriters helping him come up with the words to mark both celebratory and ... "Amazing grace," he continued, repeating the words once more for ...

President Barack Obama sings ‘Amazing Grace’ during services honoring the life of Rev. Clementa Pinckney in Charleston, S.C., on June 26, 2015.

And even Barack Obama's performance demonstrates some of this. (SOUNDBITE OF ARCHIVED RECORDING) ... OBAMA: Amazing Grace. WALVIN: As he spoke, he stopped. (SOUNDBITE OF ARCHIVED RECORDING) ...

U.S. President Barack Obama sings "Amazing Grace" as he delivers the eulogy for South Carolina state senator and Rev. Clementa Pinckney during Pinckney's funeral service June 26, 2015 in ...

And even Barack Obama's performance demonstrates some of this. (SOUNDBITE OF ARCHIVED RECORDING) ... OBAMA: Amazing Grace. WALVIN: As he spoke, he stopped. (SOUNDBITE OF ARCHIVED RECORDING) ...