FORT WORTH — Friendship comes in all shapes and sizes.

On Wednesday, it will transcend a point that two Texas Christian University alums never quite expected.

Graham McMillan will donate one of his kidneys to Danny Kolzow, who's battling kidney disease.

"In a very physical sense, I think Danny and I will be connected spiritually for the rest of our lives no matter what," says McMillan.

In February, Kolzow was told it wouldn't' be long before he would need a transplant because of his Alport syndrome.

A couple of other friends and family members were tested but no one was a good match, until McMillan got serious about helping out.

"This whole process has been operating out of faith not fear," he says.

A few weeks ago, he got the official word that he was a match.

In a gesture that has now gone viral with nearly 800,000 online views, McMillan had a friend record the moment he surprised Danny with the news at Baylor in Fort Worth, where he works as a nurse.

The group Inspire More noticed the clip, and it took off from there.

"The reaction after that was crazy, much more than we ever expected," said Kolzow.

The procedure is expected to take about five hours.

Recovery time could be up to three weeks of mostly bed rest. Or maybe not, according to McMillan.

"We're going to wreak havoc with wheelchair races," he says.

As a youth pastor, McMillan says he hopes the gesture inspires other young people to look into becoming kidney donors, even if they don't know a possible recipient.

Danny feels the same.

"To have good news was incredible," he said. "I'm just so happy."