Visible to everyone upon entering the campus courtyard, the large limestone relief that depicts the Trinity is a focal point on the east end of the chapel. The relief depicts the Ascension of Christ, the Holy Spirit as a dove, and the Father as lightning from the clouds.
The relief is a gift from Mankato-Kasota Stone, which also donated the stone used throughout the building. It was given in memory of Tom and Helen Coughlan, parents of the present owner.
The piece was designed by Bethany art professor William Bukowski and sculpted by Tom Miller of rural Mankato.