Please excuse my ignorance on this, as I am neither an Episcopalian nor an Anglican, but, wouldn't a change in apostolic teaching be a rejection of sacred scripture?
The document issued by the Catholic Church clearly spells out the scriptural references for the institution of marriage and the rejection of homosexual unions. Here are some extracts:
In the first place, man, the image of God, was created "male and female" (Gen 1:27). Men and women are equal as persons and complementary as male and female. Sexuality is something that pertains to the physical-biological realm and has also been raised to a new level the personal level where nature and spirit are united.
Marriage is instituted by the Creator as a form of life in which a communion of persons is realized involving the use of the sexual faculty. "That is why a man leaves his father and mother and clings to his wife and they become one flesh" (Gen 2:24).
Third, God has willed to give the union of man and woman a special participation in his work of creation. Thus, he blessed the man and the woman with the words "Be fruitful and multiply" (Gen 1:28). Therefore, in the Creator's plan, sexual complementarity and fruitfulness belong to the very nature of marriage.
Sacred Scripture condemns homosexual acts "as a serious depravity... (cf. Rom 1:24-27; 1 Cor 6:10; 1 Tim 1:10). Nonetheless, according to the teaching of the Church, men and women with homosexual tendencies "must be accepted with respect, compassion and sensitivity. Every sign of unjust discrimination in their regard should be avoided".7
CONSIDERATIONS REGARDING PROPOSALS TO GIVE LEGAL RECOGNITION TO UNIONS BETWEEN HOMOSEXUAL PERSONS
How does this Episcopalian group of homosexual supporters justify their position? Holy Scripture is complete, there are no new books with new or different messages. What am I missing here?
Needless to say the Ecclesiastical Court split the baby and let Righter off the hook.
The following paper explains some of the issues on both sides, but clearly lays out the biblical case.
False Teachers and Their Destruction
1But there were also false prophets among the people, just as there will be false teachers among you. They will secretly introduce destructive heresies, even denying the sovereign Lord who bought them--bringing swift destruction on themselves.
Scripture is being reinvented by the liberal wing of the Episcopalian church.