Novo millennio ineunte (At the beginning of the new millennium) is an apostolic letter of Pope John Paul II, addressed to the Bishops Clergy and Lay Faithful, "At the Close of the Great Jubilee of 2000".

The opening paragraph cites Jesus inviting the Apostle Simon Peter to "put out into the deep" for a catch: "Duc in altum" (Lk 5:4).

Ultimately, it has its center in Christ himself, who is to be known, loved and imitated, so that in him we may live the life of the Trinity, and with him transform history until its fulfilment in the heavenly Jerusalem.

I do so again now, especially in order to insist that we must rekindle in ourselves the impetus of the beginnings and allow ourselves to be filled with the ardour of the apostolic preaching which followed Pentecost.

They need to be read correctly, to be widely known and taken to heart as important and normative texts of the Magisterium, within the Church's Tradition.