Introduction:

-- Those who believe, see; they see with a light that illumines their entire journey, for it comes from the risen Christ, the morning star which never sets.

-- ... In the absence of light everything becomes confused; it is impossible to tell good from evil, or the road to our destination from other roads which take us in endless circles, going nowhere.

We Have Believed in Love

-- Faith, tied as it is to conversion, is the opposite of idolatry; it breaks with idols to turn to the living God in a personal encounter. Believing means entrusting oneself to a merciful love which always accepts and pardons, which sustains and directs our lives, and which shows its power by its ability to make straight the crooked lines of our history. Faith consists in the willingness to let ourselves be constantly transformed and renewed by God's call.

-- Our culture has lost its sense of God's tangible presence and activity in our world. We think that God is to be found in the beyond, on another level of reality, far removed from our everyday relationships. But if this were the case, if God could not act in the world, his love would not be truly powerful, truly real, and thus not even true, a love capable of delivering the bliss that it promises. ... Christians, on the contrary, profess their faith in God's tangible and powerful love, which really does act in history and determines its final destiny: a love that can be encountered, a love fully revealed in Christ's passion, death and resurrection.

-- Faith is necessarily ecclesial; it is professed from within the body of Christ as a concrete communion of believers. It is against this ecclesial backdrop that faith opens the individual Christian toward all others. ... Faith is not a private matter, a completely individualistic notion or a personal opinion: it comes from hearing, and it is meant to find expression in words and to be proclaimed.

Unless You Believe, You Will Not Understand

-- Faith without truth does not save, it does not provide a sure footing. It remains a beautiful story, the projection of our deep yearning for happiness, something capable of satisfying us to the extent that we are willing to deceive ourselves. Either that, or it is reduced to a lofty sentiment which brings consolation and cheer, yet remains prey to the vagaries of our spirit and the changing seasons, incapable of sustaining a steady journey through life.

-- Love and truth are inseparable. Without love, truth becomes cold, impersonal and oppressive for people's day-to-day lives. The truth we seek, the truth that gives meaning to our journey through life, enlightens us whenever we are touched by love.

-- This discovery of love as a source of knowledge, which is part of the primordial experience of every man and woman, finds authoritative expression in the biblical understanding of faith. In savoring the love by which God chose them and made them a people, Israel came to understand the overall unity of the divine plan. Faith-knowledge, because it is born of God's covenantal love, is knowledge which lights up a path in history.

-- By his taking flesh and coming among us, Jesus has touched us, and through the sacraments he continues to touch us even today; transforming our hearts, he unceasingly enables us to acknowledge and acclaim him as the Son of God.

-- Christian faith, inasmuch as it proclaims the truth of God's total love and opens us to the power of that love, penetrates to the core of our human experience. Each of us comes to the light because of love, and each of us is called to love in order to remain in the light.

-- The light of love proper to faith can illumine the questions of our own time about truth. Truth nowadays is often reduced to the subjective authenticity of the individual, valid only for the life of the individual. A common truth intimidates us, for we identify it with the intransigent demands of totalitarian systems. But if truth is a truth of love, if it is a truth disclosed in personal encounter with the other and with others, then it can be set free from its enclosure in individuals and become part of the common good.

I Delivered to You What I Also Received

-- Those who have opened their hearts to God's love, heard his voice and received his light cannot keep this gift to themselves. Since faith is hearing and seeing, it is also handed on as word and light. ... Faith is passed on, we might say, by contact, from one person to another, just as one candle is lighted from another.

-- Precisely because all the articles of faith are interconnected, to deny one of them, even of those that seem least important, is tantamount to distorting the whole. Each period of history can find this or that point of faith easier or harder to accept: hence the need for vigilance in ensuring that the deposit of faith is passed on in its entirety (cf. 1 Tm 6:20) and that all aspects of the profession of faith are duly emphasized.

God Prepares a City for Them

-- Faith is truly a good for everyone; it is a common good. Its light does not simply brighten the interior of the church, nor does it serve solely to build an eternal city in the hereafter; it helps us build our societies in such a way that they can journey toward a future of hope.

-- The first setting in which faith enlightens the human city is the family. I think first and foremost of the stable union of man and woman in marriage. This union is born of their love, as a sign and presence of God's own love, and of the acknowledgment and acceptance of the goodness of sexual differentiation, whereby spouses can become one flesh (cf. Gn 2:24) and are enabled to give birth to a new life, a manifestation of the Creator's goodness, wisdom and loving plan.

-- Faith is not a light which scatters all our darkness, but a lamp which guides our steps in the night and suffices for the journey. To those who suffer, God does not provide arguments which explain everything; rather, his response is that of an accompanying presence, a history of goodness which touches every story of suffering and opens up a ray of light.

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To read the full encyclical, visit The Vatican website.