The story below on migrant workers illustrates commitment to helping our brother and sisters in Christ. In Evangelium Vitae Pope John Paul II explains why such action is necessary:

The Creator has entrusted man's life to his responsible concern, not to make arbitrary use of it, but to preserve it with wisdom and to care for it with loving fidelity. The God of the Covenant has entrusted the life of every individual to his or her fellow human beings, brothers and sisters, according to the law of reciprocity in giving and receiving, of self-giving and of the acceptance of others. In the fullness of time, by taking flesh and giving his life for us, the Son of God showed what heights and depths this law of reciprocity can reach. With the gift of his Spirit, Christ gives us new content and meaning to the law of reciprocity, to our being entrusted to one another. The Spirit who builds up communion in love creates between us a new fraternity and solidarity, a true reflection of the mystery of mutual self-giving and receiving proper to the Most Holy Trinity. The Spirit becomes the new law which gives strength to believers and awakens in them a responsibility for sharing the gift of self and for accepting others, as a sharing in the boundless love of Jesus Christ himself. (76.2)