Bl. JPII on Evangelization and Authenticity

Brothers, Christ is the purpose and the measure of our lives. In the knowledge of Christ, your vocation took its origin; and in his love, your life is sustained. [...] You follow him in sacrifice and willing generosity. You follow him in joy, "singing gratefully to God from your hearts in psalms, hymns, and inspired songs" (Col 3 :16). And you follow him in fidelity, even considering it an honor to suffer humiliation for the sake of his name (cf. Acts 5:42). [...] 

Let me begin by reminding you of the personal qualities needed to share effectively with Christ in his mission. In the first place, you must be interiorly free, spiritually free. The freedom of which I speak is a paradox to many ; it is even misunderstood by some who are members of the Church. Nevertheless it is the fundamental human freedom, and it was won for us by Christ on the Cross. As Saint Paul said, "We were still helpless when at his appointed moment Christ died for sinful men" (Rom 5 :6). [...]

[T]his freedom of an undivided heart (cf. 1 Cor 7 :32-35) must be maintained by continual vigilance and fervent prayer. If you unite yourselves continually to Christ in prayer, you will always be free and ever more eager to share in his mission.

Secondly, you must center your life around the Eucharist. While you share in many ways in the passion, death and Resurrection of Christ, it is especially in the Eucharist where this is celebrated and made effective. At the Eucharist, your spirit is renewed, your mind and heart are refreshed and you will find the strength to live day by day for him who is the Redeemer of the world.

Thirdly, be dedicated to God's word. Remember the words of Jesus: "My mother and my brothers are those who hear the word of God and put it into practice" (Lk 8 :21). If you sincerely listen to God's word, and humbly but persistently try to put it into practice, like the seed sown in fertile soil, his word will bear fruit in your life.

The fourth and final element which makes effective your sharing in Christ's mission is fraternal life. Your life lived in religious community is the first concrete expression of love of neighbor. It is there that the first demands of self-sacrifice and generous service are exercised in order to build up the fraternal community. This love which unites you as brothers in community becomes in turn the force which supports you in your mission for the Church. [...]

Never forget the specific and ultimate aim of all apostolic service: to lead the men and women of our day to communion with the Most Holy Trinity. In the present age, mankind is increasingly tempted to seek security in possessions, knowledge and power. By the witness of your life consecrated to Christ in poverty, chastity and obedience, you challenge this false security. You are a living reminder that Christ alone is "the way, the truth and the life" (Jn 14 :6). [...]

For the measure of your effectiveness will be the degree of your love for Jesus Christ.

Finally, every form of apostolic service, of either an individual or a community, must be in accord with the Gospel as it is put forward by the Magisterium. For all Christian service is aimed at spreading the Gospel; and all Christian service incorporates Gospel values.

Therefore be men of God's word: men whose hearts burn within them when they hear the word proclaimed (cf. Lk 24 :32); who shape every action according to its demands; and who desire to see the Good News proclaimed to the ends of the earth.

Source: Pope John Paul II, "Address of His Holiness John Paul II to Religious Men on the Feast of Saint Francis" (address presented in Chicago, IL, October 4, 1979), nn. 1-5, 8-10, accessed October 4, 2013, http://www.vatican.va/holy_father/john_paul_ii/speeches/1979/october/documents/hf_jp-ii_spe_19791004_chicago-st-francis_en.html.