Leo XIII concluded his encyclical letter Quamquam Pluries, on the patronage of Saint Joseph, with the following prayer to Saint Joseph:
To thee, O blessed Joseph, we have recourse in our affliction, and having implored the help of thy thrice holy Spouse, we now, with hearts filled with confidence, earnestly beg thee also to take us under thy protection. By that charity wherewith thou wert united to the Immaculate Virgin Mother of God, and by that fatherly love with which thou didst cherish the Child Jesus, we beseech thee and we humbly pray that thou wilt look down with gracious eye upon that inheritance which Jesus Christ purchased by His blood, and wilt succor us in our need by thy power and strength.
Defend, O most watchful guardian of the Holy Family, the chosen offspring of Jesus Christ. Keep from us, O most loving Father, all blight of error and corruption. Aid us from on high, most valiant defender, in this conflict with the powers of darkness. And even as of old thou didst rescue the Child Jesus from the peril of His life, so now defend God’s Holy Church from the snares of the enemy and from all adversity. Shield us ever under thy patronage, that, following thine example and strengthened by thy help, we may live a holy life, die a happy death, and attain to everlasting bliss in Heaven. Amen.