There is nothing in the Bible condemning transgender people. A certain group of religious zealots try to use Deuteronomy 22:5 A woman shall not wear anything that pertains to a man, nor shall a man put on a womans garment, for all who do so are an abomination to the Lord your God.. Some have looked into the verse in its original language and said it pertained to armor, to me it doesnt really matter. The book of Deuteronomy is part of the law (Mosaic law) which Christians have not had to follow since Christ rose from the dead. There are 613 of these laws and if one is followed all must be followed and it still wouldnt get anyone into heaven. If we were under the law we would have to follow all 613 of them. Things like wearing tassles on your clothes, not trimming your beard, not wearing blended fabrics and putting a railing around your roof so someone doesnt fall off and desecrate your property. Every Christian male would be required to be circumcised.
When the church was first started the Jews wanted the Christians to follow the law but the Apostles refused, so the matter of following the law was settled long ago. Why people cherry pick verses out of the Bible and try to use them to hate others is beyond me. Especially when they do not follow the same exact laws. How could they think the law applied to others and not them? It makes no sense to me. Christians should not even be judging people outside of the church. The Apostle Paul in 1 Corinthians says, What have I to do with judging outsiders?
Christians are not under the law, we are saved by grace through faith in Christ. Even if we were under the law I wouldnt be breaking the law in Deuteronomy 22:5 because I am not a man wearing womans clothes, I AM A WOMAN wearing womans clothes. I am not a man transitioning into a woman. I already am a woman. I am making the outside match the inside. Science has already proven that trans womens brains are similar to cis womans brains and trans mens brains are similar to cis mens brains. The study was done by Harvard University in Dec 2016, I put the link to the article at the bottom of this page.