Pope Paul VI
Mysterium Fidei §8
Restoration of Liturgy Linked to Eucharistic Devotion
8 All of this brings Us deep consolation and joy. And it gives Us great pleasure to inform you of this, Venerable Brothers, so that you may join with Us in giving thanks to God, the bestower of all gifts, who rules the Church and makes her grow in virtue through His Spirit.
Source: Mysterium Fidei (Vatican.va)