ATLANTA — Shirley Gunn-Walton reads the Bible to her mother every time she visits her at a hospice. One day, while reading Psalms 23, Gunn-Walton hears a sound — so sweet, like a gentle breeze.

She opens the door to discover Kevin Dunn singing, his soft, pitch-perfect voice floating inside this 16-room building.

“Amazing Grace, how sweet the sound, That saved a wretch like me. … I once was lost but now am found, Was blind, but now, I see.”

Every Monday, for the past decade, Dunn has filled the West Georgia Hospice in LaGrange, Ga., with soul-stirring songs.

“His voice is so pretty. My mom lights up when she hears his voice. And honey, I really enjoy it, too,” said Gunn-Walton.

Gunn-Walton’s mother, Beulah Burton, recently turned 100. Burton, who has dementia and recently suffered a stroke, spends much of the day in her room — with daffodils and a poster that reads “Aged to Perfection” — with her eyes closed.

But her eyes fluttered open when Dunn stepped inside and crooned at her bedside, “How Great is Our God.” Jesus loves me. This I know, For the Bible tells me so; Little ones to Him belong. They are weak but He is strong. Yes, Jesus loves me.

A decade ago, Dunn became a singing hospice volunteer after a layoff from a job as a pressman.

At first, Dunn thought he would donate his time to a nursing home. But during a fateful traffic stop after dropping his kids off at school, he said a voice pointed him in a different direction.

“I heard a voice say, ‘hospice,’” said Dunn, “and at first I thought, no way; that is where people went to die. I don’t want to be there. But I kept hearing the voice, so after a week or two, I made some calls and looked into what I needed to do to volunteer at hospice.”

Jobs have come and gone for Dunn. All the while, he’s never missed a Monday at hospice.