Prayer for the Grace of Chastity

O, guardian of virgins, Saint Joseph! To you was entrusted the very purity—Jesus Christ and Mary, the Virgin above all virgins. For this double, and for you—the most precious treasure—because of Jesus and Mary, I pray and beseech that, through your intercession, the Lord, by His mighty power and heavenly grace, preserving me from all impurity and licentiousness, may act so that with a pure mind, an innocent heart, and a chaste body I may always serve Jesus and His Gospel. Amen.

Source: kyrios.org.ua