St. Thomas Aquinas Prayer for Chastity
Dearest Jesus! I know well that every perfect gift,
and above all others that of chastity, depends upon
the most powerful assistance of Your Providence,
and that without You a creature can do nothing.
Therefore, I pray You to defend, with Your grace,
chastity and purity in my soul as well as in my body.
And if I have ever received through my senses any
impression that could stain my chastity and purity,
may You, Who are the Supreme Lord of all my powers,
take it from me, that I may with an immaculate heart
advance in Your love and service, offering myself
chaste all the days of my life on the most pure altar
of Your Divinity. Amen.