I love this prayer. It is so simple and beautiful. It is a “night” prayer, comparable to Compline in the Catholic tradition. It’s from the book: Praying With the Orthodox Tradition, using liturgical prayers compiled by Stefano Parenti, and translated by Paula Clifford.
O Lord our God, make our hearts obedient to your divine will;
turn our eyes away from vain things, that, free from the world’s attractions, they may always look on your glorious beauty.
For you are our God, the God of compassion and salvation, and we glorify you, Father, Son and Holy Spirit, now and for ever, to the ages of ages. Amen.