I want to tell my brother who is living with his girlfriend that what he is doing is immoral, but I’m afraid of his reaction.

Although it is normal to feel intimidated or uncomfortable when you’re talking about a sensitive moral issue, don’t let a little fear and intimidation stop you from speaking the truth.

Pope Paul VI gives this exhortation in Evangelii Nuntiandi: "Every evangelizer is expected to have a reverence for truth. . . . He never betrays or hides truth out of a desire to please men, in order to astonish or to shock, nor for the sake of originality or a desire to make an impression. He does not refuse truth. He does not obscure revealed truth by being too idle to search for it, or for the sake of his own comfort, or out of fear" (EN 78).

He then asks every evangelizer "to pray about the following thought: Men can gain salvation also in other ways, by God’s mercy, even though we do not preach the gospel to them; but as for us, can we gain salvation if through negligence or fear or shame—what St. Paul called ‘blushing for the gospel’—or as a result of false ideas we fail to preach it? For that would be to betray the call of God, who wishes the seed to bear fruit…" (ibid., 80).