There's the bible verse from Mathew 19:12 "For there are eunuchs who have been so from birth, and there are eunuchs who have been made eunuchs by men, and there are eunuchs who have made themselves eunuchs for the sake of the kingdom of heaven. Let the one who is able to receive this receive it."
And another from Mathew 6:25 "Therefore I tell you, do not be anxious about your life, what you will eat or what you will drink, nor about your body, what you will put on. Is not life more than food, and the body more than clothing?"
And also this from Galatians 3:28 "There is neither Jew nor Greek, there is neither slave nor free, there is no male and female, for you are all one in Christ Jesus."
So in some parts of the bible it seems to be ok if you're trans. You're just being yourself after all. Hope this helps.