He was Protestant. But if Protestants had saints, Mister Rogers might already have been canonized.

When Rogers decided to pursue a career in television, it wasn’t fame he sought. While watching TV during seminary, he “saw people throwing pies at each others faces,” which he believed was both “demeaning behavior” and a missed opportunity. In the wake of World War II, thousands of veterans returned from battle and started families. These shell-shocked heroes risked creating a generation of emotionally stunted children. Television was a perfect vehicle for teaching kids to cope with life’s difficulties and express their feelings, but it was used mostly for mindless entertainment.

“After graduating from seminary, the Presbyterian Church didn’t know what to do with Fred,” says Amy Hollingsworth, author of The Simple Faith of Mister Rogers. “So the presbytery gave him a special commission to be an evangelist to children through the media.”

Fred’s faith surfaced in subtle, indirect ways that most viewers might miss, but it infused all he did. He believed “the space between the television set and the viewer is holy ground,” but he trusted God to do the heavy lifting. The wall of his office featured a framed picture of the Greek word for “grace,” a constant reminder of his belief that he could use television “for the broadcasting of grace through the land.” Before entering that office each day, Rogers would pray, “Dear God, let some word that is heard be yours.”

Rogers told kids they mattered, that they were worthy of love, and that emotions were to be embraced, not buried. He spoke to children like grown-ups, and helped them tackle topics such as anger, trust, honesty, courage, and sadness.

“The world is not always a kind place,” Rogers once said. “That’s something all children learn for themselves, whether we want them to or not, but it’s something they really need our help to understand.”

“Mister Rogers’ Neighborhood” helped young viewers process stress incurred during intense periods of cultural upheaval. When it would have been easy to demonize villains, Rogers instead forced viewers to tussle with a question Jesus himself was asked in the gospel of Luke: “Who is my neighbor?” While the question felt different depending on the circumstances, Rogers’ answer never wavered.

“His definition of ‘neighbor’ was whomever you happen to be with at the moment, especially if they are in need,” Hollingsworth said.

Rogers took an artisan’s approach to television production. Each show was designed to meet the psychological needs of children by giving them “a neighborhood expression of care,” in consultation with a team of experts. Rogers thought of himself as something of a surrogate parent, which is why he often utilized puppets and rarely featured other children—he didn’t want to create a sense of “sibling rivalry.”