I vote we treat transgendered people like eunuchs. That's essentially what they are.
Remember there are several classifications of eunuch:
1.) Some were born eunuchs. These were born with deformity or hermaphroditic genitalia. Some might argue that some seemingly "normal" individuals (primarily males in this example) identified as the opposite sex since their earliest memories and fall into this category.
2.) Some were made eunuchs by men. These were castrated as a result of being prisoners of war, being chosen for special service to the king, or by personal request due a lack of interest in being male. These are said to have never felt passion towards a woman.
3.) Some were made eunuchs for the sake of the Kingdom. These individuals felt that it was best to abate or correct passions through castration.
Ancient depictions of eunuchs from ancient writings illustrate that not all eunuchs were castrated. Instead, many who were men lived as women. The ancient world didn't classify them as male or female, but rather as being "eunuch" (a third gender based on behavior and physiology). Eunuchs of all kinds were said to have been "soft spoken" and feminine in disposition. They typically wore bright colors and flowing silks. They were regarded as being highly intelligent and due to their lake of passion for women, they made excellent guards and care givers for a king's harem. In ancient times eunuchs were often used as concubines by their masters (a eunuch could never be classified as a "wife").
Jewish eunuchs who were castrated were not permitted to worship in the Temple.
Prophetically speaking, God states that He would one day give access to the eunuch and a name better than that of sons and daughters, an everlasting name that shall not be cut off:
Isaiah 56:3-5King James Version (KJV)
3 Neither let the son of the stranger, that hath joined himself to the Lord, speak, saying, The Lord hath utterly separated me from his people: neither let the eunuch say, Behold, I am a dry tree.
4 For thus saith the Lord unto the eunuchs that keep my sabbaths, and choose the things that please me, and take hold of my covenant;
5 Even unto them will I give in mine house and within my walls a place and a name better than of sons and of daughters: I will give them an everlasting name, that shall not be cut off.
Today eunuchs can still be found in remote regions of the Middle East, Pakistan, and India.