Prayer of St. Augustine

Breathe in me O Holy Spirit,
that my thoughts may all be holy.
Act in me O Holy Spirit,
that my work, too, may be holy.
Draw my heart O Holy Spirit,
that I love but what is holy.
Strengthen me O Holy Spirit,
to defend all that is holy.
Guard me, then, O Holy Spirit,
that I always may be holy.

Amen.

St. Augustine of Hippo
Bishop, Writer, Doctor