Marking the feast of St Joseph the Worker and World Labor Day today, Pope Francis made an appeal worldwide to take decisive steps to end slave labor.
Speaking during his general audience in Italian he said: “I would like to add a word about another particular work situation that concerns me. I am referring to what we could define as ‘slave labor’, the work that enslaves. How many people worldwide are victims of this type of slavery, in which the person is at the service of his or her work, while work should offer a service to people so they may have dignity?
I ask my brothers and sisters in faith and all men and women of good will for a decisive choice to combat trafficking in persons, which includes ‘slave labor’.”
The following are his remarks, as published by Vatican radio. 
Dear brothers and sisters, Good Day!
Today, May 1st, we celebrate Saint Joseph the Worker and begin the month traditionally dedicated to Our Lady. In our encounter this morning, I want to focus on these two figures, so important in the life of Jesus, the Church and in our lives, with two brief thoughts: the first on work, the second on the contemplation of Jesus
In the Gospel of St. Matthew, in one of the moments when Jesus returns to his town, to Nazareth, and speaks in the synagogue, the amazement of his fellow townspeople at his wisdom is emphasized, and the question they ask: "Is not this the carpenter's son?”(13:55). Jesus comes into our history is among us, born of Mary by the power of God, but with the presence of Saint Joseph, the legal father who cares for him and also teaches him his work. Jesus is born and lives in a family, in the Holy Family, learning the craft of carpenter from Saint Joseph in his workshop in Nazareth, sharing with him the commitment, effort, satisfaction and also the difficulties of every day.
This reminds us of the dignity and importance of work. The book of Genesis tells us that God created man and woman entrusting them with the task of filling the earth and subduing it, which does not mean exploiting it, but nurturing and protecting it, caring for it through their work (cf. Gen 1:28; 2 15). Work is part of God’s loving plan; we are called to cultivate and care for all the goods of creation and in this way participate in the work of creation! Work is fundamental to the dignity of a person. Work, to use an image, "anoints" us with dignity, fills us with dignity, makes us similar to God, who has worked and still works, who always acts (cf. Jn 5:17); it gives you the ability to maintain ourselves, our family, to contribute to the growth of our nation. And here I think of the difficulties which, in various countries, today afflict the world of work and business; I think of how many, and not just young people, are unemployed, many times due to a purely economic conception of society, which seeks selfish profit, beyond the parameters of social justice.
I wish to extend an invitation to solidarity to everyone, and I would like to encourage those in public office to make every effort to give new impetus to employment, this means caring for the dignity of the person, but above all I would say do not lose hope; St. Joseph also experienced moments of difficulty, but he never lost faith and was able to overcome them, in the certainty that God never abandons us. And then I would like to speak especially to you young people: be committed to your daily duties, your study, your work, to relationships of friendship, to helping towards others; your future also depends on how you live these precious years of your life. Do not be afraid of commitment, of sacrifice and do not look with fear towards the future; keep your hope alive: there is always a light on the horizon.
I would like to add a word about another particular work situation that concerns me: I am referring to what we could define as "slave labor", the work that enslaves. How many people worldwide are victims of this type of slavery, in which the person is at the service of his or her work, while work should offer a service to people so they may have dignity? I ask my brothers and sisters in faith and all men and women of good will for a decisive choice to combat trafficking in persons, which includes "slave labor".
In reference to the second thought: in the silence of daily events, St. Joseph, together with Mary, has one common center of attention: Jesus. They accompany and nurture, with commitment and tenderness, the growth of the Son of God made man for us, reflecting on everything that happened. In the Gospels, St. Luke twice emphasizes the attitude of Mary, which is also that of St. Joseph: "She kept all these things and pondered them in her heart" (2,19.51). To listen to the Lord, we must learn to contemplate, feel His constant presence in our lives and we must stop and converse with Him, give him space in prayer. Each of us, even you boys and girls, young people, so many of you here this morning, should ask: how much space do I give to the Lord? Do I stop to talk with him? Ever since we were children, our parents have accustomed us to start and end the day with a prayer, to teach us to feel that the friendship and the love of God accompanies us.
Let us remember the Lord more in our daily life!
And in this month of May, I would like to recall the importance and beauty of the prayer of the Holy Rosary. Reciting the Hail Mary, we are led to contemplate the mysteries of Jesus, that is, to reflect on the key moments of his life, so that, as with Mary and St. Joseph, He is the center of our thoughts, of our attention and our actions. It would be nice if, especially in this month of May, we could pray the Holy Rosary together in the family, with friends, in the parish, or some prayer to Jesus and the Virgin Mary! Praying together is a precious moment that further strengthens family life, friendship! Let us learn to pray more in the family and as a family!
Dear brothers and sisters, we ask Saint Joseph and the Virgin Mary, who teach us to be faithful to our daily tasks, to live our faith in the actions of everyday life and to give more space to the Lord in our lives, to stop to contemplate His face.