It belongs to the Dicastery for Promoting Christian Unity to engage in timely ecumenical initiatives and activities, both within the Catholic Church and in relations with other Churches and Ecclesial Communities, in order to restore unity among Christians.

It is the task of the Dicastery to implement the teachings of the Second Vatican Council and of the post-conciliar magisterium on ecumenism.

It deals with the correct interpretation and faithful application of ecumenical principles and established directives in order to guide, coordinate and develop ecumenical activity.

It promotes Catholic meetings and events, both nationally and internationally, suitable for promoting Christian unity.

The Dicastery coordinates the ecumenical initiatives of other curial institutions, offices and institutions associated with the Holy See with other Churches and Ecclesial Communities.

Having previously submitted matters to the Roman Pontiff, the Dicastery takes care of relations with other Churches and Ecclesial Communities. It promotes theological dialogue and meetings in order to foster unity with them, making use of the cooperation of experts.

The Dicastery appoints the Catholic members of theological dialogues, and the Catholic observers and delegates for the various ecumenical meetings. Whenever it seems appropriate, it invites observers, or fraternal delegates of other Churches and Ecclesial Communities to the most significant meetings and events of the Catholic Church.

The Dicastery fosters ecumenical initiatives also on the spiritual, pastoral and cultural levels.

Since the Dicastery, by its very nature, must often deal with questions pertaining to the faith, it is necessary that it proceed in consultation with the Dicastery for the Doctrine of the Faith, especially when it comes to issuing public documents or declarations.

In dealing with matters concerning relations between the Eastern Catholic Churches and the Orthodox or Oriental Orthodox Churches, it cooperates with the Dicastery for the Eastern Churches and the Secretariat of State.

In order to advance the relationship between Catholics and Jews, the Commission for Religious Relations with the Jews is established within the Dicastery. The Commission is directed by the Prefect.

[Apostolic Constituion, Praedicate Evangelium, 19 March 2022]