Homosexual behavior and desire is a norm of humanity. It has existed as long as warm blooded creatures have been on the planet, therefore it cannot be a perversion. Romans was written by a man who used to kill Christians for a living before that day on the road to Damascus. Why don't you quote from Ted Bundy's Letter to Seattle - it is just as credible. Not everything in the Bible is equal or as clear as you claim it is. The Bible is silent on the subject of condoms and birth control. Even the so called prohibition against masturbation is a theological error. Onan's sin was not spilling his seed on the ground for pleasure, it was in refusing God's order to screw his sister-in-law. He felt it was wrong. Makes you wonder who the moral authority was, God or Onan.
You used the word perversion. Well "perversion" is a question of morality. For definition and guidance on morality, where else would I go, but to the Bible? But perhaps many Christians may not like, that Romans 1 not only speaks against going against the natural use in the case of homosexuality, but couldn't birth control also fit into what Romans 1 speaks of?
Paul was much more a Christian convert, than Constantine was, yet all that Sunday-keeping stuff seems to come from Constantine, who brought in quite a lot of paganism with his supposed conversion. Should we actually be calling Paul a Christian, considering that he was a Jew? But Jews who do not believe Messiah has already come, seem to reject the New Testament, thus Paul and other writers of the New Testament, are somewhat inaccurately considered to be Christians, although most of them were Jews and their religion was Judaism. Well that is a complicated subject.
But wouldn't it be more accurate to say, that reproductive desire is a norm of humanity? Trendiness can not be an accurate measure of what is a perversion or not, as that ignores moral considerations. It is not defined by popular trends or votes, but by what the Creator of the world, God says. When parents say to their children, "Because I said so," they are largely right, because the parents do have the authority.
The Bible does not once use the word abortion. Yet the Bible clearly says, Thou shalt not kill, thus abortion is wrong. The Bible does speak against birth control, where it says, Be fruitful and multiply and fill the earth, and subdue it. Surely birth control is rebellion against that commandment. What exactly Onan did wrong, seems to be the subject of much debate, and I personally think that Onan was quite wicked, and his "pulling out" was the final straw, and God had have enough of Onan's crap. But a lot of people of faith, do associate Onan with the possible sin of "spilling one's seed" which does seem to be contrary to human life anyway. Perhaps it is partially why Catholicism still pushes either having big families or rhythm (NFP), as the only means of so-called "family planning". Even clergyman Thomas Malthus, due to his religious belief, only accepted "the temporary unhappiness of abstinence," as the only moral means of human fertility control. But like most people, I do not consider abstinence as practical for
married people.
Onan's objection was
not what you said it was. You need to read it in the context of the law and customs that they were under. I wanted to say Mosaic law, but the passage is Genesis 38, and as I recall, I think Moses enters the scene slightly later. Onan was being selfish, as the child would not be seen so much as his. Back then, to be barren of children was a terrible thing, and still in many cultures, people have children for "old age security" among other concerns. His brother died having left her no seed. I think had I found myself in Onan's situation, it would have perhaps been a cool license for sex without the responsibility, so why not then, why not cum in her baby hole, so long as she isn't some awful bitch and she has no STDs? But it could be that I don't so much understand the issue either, and maybe he would been the recognized father and have responsibility and be married to her, in addition to his already-wife?, so that could have seemed a bit much. I also do not fully understand the custom. But Onan must have had some attitude problem, as if his objection was in any way legit, why was he willing to have sex with her at all? He seemed to like the sex, yet be baby-phobic when there probably was no real reason for him to be baby-phobic.
Although many Christians seem to think that the Bible forbids masturbation, I have read the entire Bible, and can find no verse that forbids it. The closest I can find, would be Jesus saying that if you lust after a woman, you have committed adultery in your heart. What exactly does that mean concerning masturbation? No visual aids perhaps? Or should a person not look at their penis, even when they are in the bathtub naked? Or should you not hold your penis to aim it during peeing? May we shake the dribbles of urine out of the penis but only 3 times, and the 4th is somehow deemed sin? Or would it be the 5th? However, if at all reasonably possible, semen should be released into the vagina of one's wife, and not spilled or wasted, because it does contain the very real potential of human life, and that is something very sacred. As a pro-lifer, I believe that people should not pull out, and also that people should not try to control their fertility, but rather allow human life to freely grow and spread, worldwide. In the KJV, it is called "the seed of copulation." Notable is the word "seed". Also, I think that more people should marry younger, if they are ready, so as to have a proper natural and moral outlet for the powerful reproductive urges, and to help avoid sexual sins and things like babies born outside of wedlock. That is also why are ancestors, not long ago at all, married off their children young.