When I listen to this, I picture a vast sea of everyday people around the throne of Jesus; He is beaming with delight.
YouTube video: "I Stand Amazed (How Marvellous)" (with lyrics)
The credits for the choir and director are shown below the video ("Four-part congregational acappella singing at Franconia Mennonite Church, Telford, Pennsylvania on June 6, 1993. Singing led by Dave Cassel"). The original hymn title was "My Savior's Love."