Really, the only one that requires a source is that Corinthians 6:9-10 is mistranslated, and that's based on the fact that the word that has been commonly been translated as "abusers of themselves with mankind", arsenokoitai, appears nowhere in the Greek records prior to Paul's writings. In essence, he made it up. Modern translations like to say it means "homosexuals", but this hasn't always been the preferred interpretation. In Martin Luther's day, it was thought to mean "masturbators". The translation of the word "effeminate" is similarly flawed, albeit to a lesser degree, and is probably a reflection of Paul's sexist biases (he was, after all, a Roman citizen).
Everything else is based on logic.
Mark 10:6 - 10:9
But from the beginning of the creation God made them male and female.
For this cause shall a man leave his father and mother, and cleave to his wife;
And they twain shall be one flesh: so then they are no more twain, but one flesh.
What therefore God hath joined together, let not man put asunder.
This doesn't refer to trans people at all. It is simply Christ referring to things in a way the people he was talking to would understand. It doesn't even exclude trans people at all, as this post from a Colorado pastor (which the person I was responding to was himself responding to, and quite poorly):
Hediacrana wrote:Seeing that we're back to the never-ending 'theology and trans' debate, I just thought for the sake of contrast I'd share this bit from a facebook post that has been making the rounds during the last month or so:In the beginning, God created day and night. But have you ever seen a sunset!?!? Well trans and non-binary people are kind of like that. Gorgeous. Full of a hundred shades of color you can't see in plain daylight or during the night.
In the beginning God created land and sea. But have you ever seen a beach?!?! Well trans and non-binary people are kind of like that. Beautiful. A balanced oasis that's not quite like the ocean, nor quite like the land.
In the beginning God created birds of the air and fish of the sea. But have you ever seen a flying fish, or a duck or a puffin that swims and flies, spending lots of time in the water and on the land!?!? Well trans and non-binary people are kind of like that. Full of life. A creative combination of characteristics that blows people's minds.
In the beginning God also created male and female, in God's own image, God created them. So in the same way that God created realities in between, outside of, and beyond night and day, land and sea, or fish and birds, so God also created people with genders beyond male and female. Trans and non-binary and agender and intersex, God created us. All different sorts of people for all different sorts of relationships. Created from love to love and be loved. In God's image we live.
God is still creating you. You are no less beautiful and wild than a sunset or a beach or a puffin. You are loved. You have a place here.
Leviticus 18:22
Thou shalt not lie with mankind, as with womankind: it is abomination.
The oldest verse, and the least applicable out of all of them to LGBT+ issues. Christ fulfilled the law, the Old Testament no longer has the force of law (just like all those parts that say you can't eat double bacon cheeseburgers, or wear cotton-wool blended fabrics, or play football, or interact with a cisgender woman during her period, or plant two different crops in the same field). It is simply included in the Bible for historical context. And even when it was relevant, it was really just customary law. Things to distinguish the Jews from the people surrounding them (like a more visible form of circumcision).
Matthew 18:6
But whoso shall offend one of these little ones which believe in me, it were better for him that a millstone were hanged about his neck, and that he were drowned in the depth of the sea.
This one has absolutely nothing to do with LGBT+ issues at all, but rather, condemns child abuse.