Pope Francis has released his latest Apostolic Exhortation called Gaudete et Exsultate (Rejoice and be Glad), a hard-hitting 100-page booklet on how people can be holy in a modern world filled with secular distractions and materialism.

It may prove to be controversial. Here are five quotes from the pope's document for Christians today:

1. 'Not infrequently, contrary to the promptings of the Spirit, the life of the Church can become a museum piece or the possession of a select few. This can occur when some groups of Christians give excessive importance to certain rules, customs or ways of acting.'

2. 'We cannot uphold an ideal of holiness that would ignore injustice in a world where some revel, spend with abandon and live only for the latest consumer goods, even as others look on from afar, living their entire lives in abject poverty. We often hear it said that, with respect to relativism and the flaws of our present world, the situation of migrants, for example, is a lesser issue. Some Catholics consider it a secondary issue compared to the "grave" bioethical questions. That a politician looking for votes might say such a thing is understandable, but not a Christian, for whom the only proper attitude is to stand in the shoes of those brothers and sisters of ours who risk their lives to offer a future to their children.'

3. '[Some] Christians insist on taking another path, that of justification by their own efforts, the worship of the human will and their own abilities. The result is a self-centred and elitist complacency, bereft of true love. This finds expression in a variety of apparently unconnected ways of thinking and acting: an obsession with the law, an absorption with social and political advantages, a punctilious concern for the Church's liturgy, doctrine and prestige, a vanity about the ability to manage practical matters, and an excessive concern with programmes of self-help and personal fulfilment. Some Christians spend their time and energy on these things, rather than letting themselves be led by the Spirit in the way of love, rather than being passionate about communicating the beauty and the joy of the Gospel and seeking out the lost among the immense crowds that thirst for Christ.'

4. 'Jesus explained with great simplicity what it means to be holy when he gave us the Beatitudes...The Beatitudes are like a Christian's identity card.'

5. 'We may think that we give glory to God only by our worship and prayer, or simply by following certain ethical norms. It is true that the primacy belongs to our relationship with God, but we cannot forget that the ultimate criterion on which our lives will be judged is what we have done for others.'