And this is the testimony of Sacred Scripture. To these could be added other passages, along with a long list of quotes from the Fathers and from Sacred Tradition, with Councils and other teaching documents from the earliest days of the Church until today.
To those who like to object that Jesus himself never spoke of homosexual acts, I would give these three responses:
Jesus said to his apostles, “He who hears you hears me.” And therefore Jesus does speak through St. Paul and the other epistle writers.
The same Holy Spirit that authored the Gospels also authored the Epistles. There are not different authors or levels of authority in Sacred Writ. What St. Paul says is no less authoritative or inspired than what the evangelists recorded.
The teaching of the Church regarding the sinfulness of homosexual acts, fornication, and adultery cannot change, attested to as they are in Sacred Scripture and Tradition. The Church can only offer the truth to all the faithful and to all in this world, along with her promise of God’s mercy to those who seek repentance and who now desire to live chastely. To those who refuse, she continues to give warning and to pray both for conversion and for rescue from the deceptions of the world and the evil one.
Cardinal George summarized well both the reason we cannot approve homosexual acts and the solution of celibacy for those of same-sex attraction: The biblical vision of what it means to be human tells us that not every friendship or love can be expressed in sexual relations. Clear and concise. Thank you, Cardinal George.
For more information and support for those who have same-sex attraction, see here: Courage