The militant part of me wants you to show up with a stack of books and DVDs and hijack the entire training session with pro-lgbtetc Christian theologies.
But the part of me that remembers needing to be in the closet for safety understand that this isn't always possible or safe.
Things to consider in the meantime:
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Jesus, the Bible, and Homosexuality, Revised and Expanded Edition: Explode the Myths, Heal the Church - Dr. Jack Rogers
https://www.amazon.com/Jesus-Bible-Homosexuality-Revised-Expanded/dp/066423397X/
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Coming Out as Sacrament Paperback - Chris Glaser
https://www.amazon.com/Coming-Out-Sacrament-Chris-Glaser/dp/0664257488/
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Christianity, Social Tolerance, and Homosexuality: Gay People in Western Europe from the Beginning of the Christian Era to the Fourteenth Century - Dr. John Boswell
https://www.amazon.com/Christianity-Social-Tolerance-Homosexuality-Fourteenth/dp/022634522X/
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Radical Love: Introduction to Queer Theology - Rev. Dr. Patrick S. Cheng
https://www.amazon.com/Radical-Love-Introduction-Queer-Theology/dp/1596271329/
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From Sin to Amazing Grace: Discovering the Queer Christ - Rev. Dr. Patrick S. Cheng
https://www.amazon.com/gp/product/1596272384/
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Anyone and Everyone - Documentary
https://www.amazon.com/Anyone-Everyone-Susan-Polis-Schutz/dp/B000WGLADI/
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For The Bible Tells Me So
https://www.amazon.com/dp/B000YHQNCI
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Straight Ahead Comic - Life’s Not Always Like That!
http://straightahead.comicgenesis.com/
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Here's my list:
Jesus, the Bible, and Homosexuality, Revised and Expanded Edition: Explode the Myths, Heal the Church - Dr. Jack Rogers
Coming Out as Sacrament Paperback - Chris Glaser
Christianity, Social Tolerance, and Homosexuality: Gay People in Western Europe from the Beginning of the Christian Era to the Fourteenth Century - Dr. John Boswell
Radical Love: Introduction to Queer Theology - Rev. Dr. Patrick S. Cheng
From Sin to Amazing Grace: Discovering the Queer Christ - Rev. Dr. Patrick S. Cheng
Anyone and Everyone - Documentary
For The Bible Tells Me So
Straight Ahead Comic - Life’s Not Always Like That!
You are loved, and lovingly made by a loving God-who-is-Love.
And queer people are part of the loving plan, not some kind of defect.
There's an entire world of queer theology out there, undoing the sin of homophobia and transphobia one page at a time.
Here are a bunch of resources that helped me break free of the toxic false theologies of my family and reach a deeper understanding of God.
I suggest starting with the first book and the two by Rev. Dr Cheng.
Jesus, the Bible, and Homosexuality, Revised and Expanded Edition: Explode the Myths, Heal the Church - Dr. Jack Rogers https://www.amazon.com/Jesus-Bible-Homosexuality-Revised-Expanded/dp/066423397X/
Coming Out as Sacrament Paperback - Chris Glaser https://www.amazon.com/Coming-Out-Sacrament-Chris-Glaser/dp/0664257488/
Christianity, Social Tolerance, and Homosexuality: Gay People in Western Europe from the Beginning of the Christian Era to the Fourteenth Century - Dr. John Boswell https://www.amazon.com/Christianity-Social-Tolerance-Homosexuality-Fourteenth/dp/022634522X/
Radical Love: Introduction to Queer Theology - Rev. Dr. Patrick S. Cheng https://www.amazon.com/Radical-Love-Introduction-Queer-Theology/dp/1596271329/
From Sin to Amazing Grace: Discovering the Queer Christ - Rev. Dr. Patrick S. Cheng https://www.amazon.com/gp/product/1596272384/
Anyone and Everyone - Documentary https://www.amazon.com/Anyone-Everyone-Susan-Polis-Schutz/dp/B000WGLADI/
For The Bible Tells Me So https://www.amazon.com/dp/B000YHQNCI
Straight Ahead Comic - Life’s Not Always Like That! http://straightahead.comicgenesis.com/
God and the Gay Christian: The Biblical Case in Support of Same-Sex Relationships - Matthew Vines http://www.amazon.com/God-Gay-Christian-Biblical-Relationships-ebook/dp/B00F1W0RD2/
Some of these have been helpful in discussing queer theology with my mother at least (my father is a sign-waving buffoon now, just a couple steps removed from the Westboro Baptist Church freaks). But it can be really REALLY hard to talk to Catholics about this stuff if they have drunk the koolaid about the infallibility of the magisterium or the pope or what have you.
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Jesus, the Bible, and Homosexuality, Revised and Expanded Edition: Explode the Myths, Heal the Church - Dr. Jack Rogers
https://www.amazon.com/Jesus-Bible-Homosexuality-Revised-Expanded/dp/066423397X/
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Coming Out as Sacrament Paperback - Chris Glaser
https://www.amazon.com/Coming-Out-Sacrament-Chris-Glaser/dp/0664257488/
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Christianity, Social Tolerance, and Homosexuality: Gay People in Western Europe from the Beginning of the Christian Era to the Fourteenth Century - Dr. John Boswell
https://www.amazon.com/Christianity-Social-Tolerance-Homosexuality-Fourteenth/dp/022634522X/
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Radical Love: Introduction to Queer Theology - Rev. Dr. Patrick S. Cheng
https://www.amazon.com/Radical-Love-Introduction-Queer-Theology/dp/1596271329/
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From Sin to Amazing Grace: Discovering the Queer Christ - Rev. Dr. Patrick S. Cheng
https://www.amazon.com/gp/product/1596272384/
-------------------------------------------------------------------------------------------
Anyone and Everyone - Documentary
https://www.amazon.com/Anyone-Everyone-Susan-Polis-Schutz/dp/B000WGLADI/
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For The Bible Tells Me So
https://www.amazon.com/dp/B000YHQNCI
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Try giving him some of these resources to help him find a more loving understanding of the Bible.
I especially recommend the first 2 books, and the 2 by Rev. Dr. Patrick Cheng.
Jesus, the Bible, and Homosexuality, Revised and Expanded Edition: Explode the Myths, Heal the Church - Dr. Jack Rogers
Coming Out as Sacrament Paperback - Chris Glaser
Christianity, Social Tolerance, and Homosexuality: Gay People in Western Europe from the Beginning of the Christian Era to the Fourteenth Century - Dr. John Boswell
Radical Love: Introduction to Queer Theology - Rev. Dr. Patrick S. Cheng
From Sin to Amazing Grace: Discovering the Queer Christ - Rev. Dr. Patrick S. Cheng
Anyone and Everyone - Documentary
For The Bible Tells Me So
Straight Ahead Comic - Life’s Not Always Like That!
This isn't my list, but was shared in /r/OpenChristian
Jesus, the Bible, and Homosexuality, Revised and Expanded Edition: Explode the Myths, Heal the Church - Dr. Jack Rogers https://www.amazon.com/Jesus-Bible-Homosexuality-Revised-Expanded/dp/066423397X/
Coming Out as Sacrament Paperback - Chris Glaser https://www.amazon.com/Coming-Out-Sacrament-Chris-Glaser/dp/0664257488/
Christianity, Social Tolerance, and Homosexuality: Gay People in Western Europe from the Beginning of the Christian Era to the Fourteenth Century - Dr. John Boswell https://www.amazon.com/Christianity-Social-Tolerance-Homosexuality-Fourteenth/dp/022634522X/
Radical Love: Introduction to Queer Theology - Rev. Dr. Patrick S. Cheng https://www.amazon.com/Radical-Love-Introduction-Queer-Theology/dp/1596271329/
From Sin to Amazing Grace: Discovering the Queer Christ - Rev. Dr. Patrick S. Cheng https://www.amazon.com/gp/product/1596272384/
Anyone and Everyone - Documentary https://www.amazon.com/Anyone-Everyone-Susan-Polis-Schutz/dp/B000WGLADI/
For The Bible Tells Me So https://www.amazon.com/dp/B000YHQNCI
Straight Ahead Comic - Life’s Not Always Like That! http://straightahead.comicgenesis.com/
God and the Gay Christian: The Biblical Case in Support of Same-Sex Relationships - Matthew Vines http://www.amazon.com/God-Gay-Christian-Biblical-Relationships-ebook/dp/B00F1W0RD2/
drops my book list and runs away to go sleep
Jesus, the Bible, and Homosexuality, Revised and Expanded Edition: Explode the Myths, Heal the Church - Dr. Jack Rogers https://www.amazon.com/Jesus-Bible-Homosexuality-Revised-Expanded/dp/066423397X/
Coming Out as Sacrament Paperback - Chris Glaser https://www.amazon.com/Coming-Out-Sacrament-Chris-Glaser/dp/0664257488/
Christianity, Social Tolerance, and Homosexuality: Gay People in Western Europe from the Beginning of the Christian Era to the Fourteenth Century - Dr. John Boswell https://www.amazon.com/Christianity-Social-Tolerance-Homosexuality-Fourteenth/dp/022634522X/
Radical Love: Introduction to Queer Theology - Rev. Dr. Patrick S. Cheng https://www.amazon.com/Radical-Love-Introduction-Queer-Theology/dp/1596271329/
From Sin to Amazing Grace: Discovering the Queer Christ - Rev. Dr. Patrick S. Cheng https://www.amazon.com/gp/product/1596272384/
Anyone and Everyone - Documentary https://www.amazon.com/Anyone-Everyone-Susan-Polis-Schutz/dp/B000WGLADI/
For The Bible Tells Me So https://www.amazon.com/dp/B000YHQNCI
Straight Ahead Comic - Life’s Not Always Like That! http://straightahead.comicgenesis.com/
God and the Gay Christian: The Biblical Case in Support of Same-Sex Relationships - Matthew Vines http://www.amazon.com/God-Gay-Christian-Biblical-Relationships-ebook/dp/B00F1W0RD2/