116 The early Church understood and practiced this Divine Precept, and expressed it in a magnificent prayer; do you associate yourselves with those sentiments which answer so well to the necessities of the present hour: "Remember, O Lord, Thy Church, to free her from all evil and to perfect her in Thy love, and sanctify and collect her from the four winds into Thy Kingdom, which Thou has prepared for her, because Thine is the power, and the glory for ever" (Doctrine of the Twelve Apostles, C 10).
Source: Summi Pontificatus (Vatican.va)