Witnessing to Christ with all one's life
Although every disciple of Christ, as far in him lies, has the duty of spreading the Faith, Christ the Lord always calls whomever He will from among the number of His disciples, to be with Him and to be sent by Him to preach to the nations (cf. Mark 3:13)…
Yet man must respond to God Who calls, and that in such a way, that without taking counsel with flesh and blood (Gal. 1:16), he devotes himself wholly to the work of the Gospel. This response, however can only be given when the Holy Spirit gives His inspiration and His power. For he who is sent enters upon the life and mission of Him Who "emptied Himself, taking the nature of a slave" (Phil. 2:7). Therefore, he must be ready to stay at his vocation for an entire lifetime, and to renounce himself and all those whom he thus far considered as his own, and instead to "make himself all things to all men" (1 Cor. 9:22).
Announcing the Gospel to all nations, he confidently makes known the mystery of Christ, whose ambassador he is, so that in him he dares to speak as he ought (cf. Eph. 6:19), not being ashamed of the scandal of the Cross. Following in his Master's footsteps, meek and humble of heart, he proves that His yoke is easy and His burden light (Matt. 11:29ff.) By a truly evangelical life, in much patience, in long - suffering, in kindness, in unaffected love, he bears witness to his Lord, if need be to the shedding of his blood. He will ask of God the power and strength, that he may know that there is an overflowing of joy amid much testing of tribulation and deep poverty (2 Cor. 8:2).