Today, Pentecost Sunday, we celebrate the Holy Spirit. A prayer from St. Augustine of Hippo (AD 354-430),
Breathe in me O Holy Spirit that my thoughts may all be holy;
Act in me O Holy Spirit that my works, too, may be holy;
Draw my heart O Holy Spirit that I love but what is holy;
Strengthen me O Holy Spirit to defend that is holy;
Guard me then O Holy Spirit that I always may be holy.
See more Pentecost prayers and my Pentecost Sunday message 2012.