Earlier this month, Joe Biden addressed the nation for the first time as president-elect. Biden will be the second Catholic president in the nation’s history, and he referenced his Catholic faith by invoking a particular hymn.

The hymn draws from Psalm 91 in the Bible. But it was composed by Father Jan Michael Joncas, a priest, artist-in-residence and research fellow in Catholic studies at the University of St. Thomas in St. Paul, Minnesota. We speak with Father Joncas about the story behind 'On Eagle's Wings.'