I.O.G.D. Inscription on Quadrangle Building

What do those big letters outside of the tower to the entrance of the dining service mean "I.O.G.D."?

The initials I.O.G.D. are taken from the Holy Rule of Saint Benedict "In omnibus glorificetur Deus" – that God may be glorified in all things.

[See #22 from St. John’s, Collegeville, Minn., A Self-guided Walking Tour available in the Great Hall]