The actual word "homosexual" wasn't used until the 19th century. Even so, I think you can understand that these verses are talking very plainly about homosexuality and how God feels about it. It's very plain and clear. You would have to be an absolute moron not to understand that God is talking about homosexuality in these verses.
You asked for proof, here it is. Unfortunately, I tend to doubt your statement that you will be swayed by this, even if you read it in black and white in God's Holy Word, but I'll give it a try anyway.
"If a man lies with a male as he lies with a woman, both of them have committed an abomination." (Leviticus 20:13).
"You shall not lie with a male as with a woman. It is an abomination. Nor shall you mate with any animal, to defile yourself with it. Nor shall any woman stand before an animal to mate with it. It is perversion. ‘Do not defile yourselves with any of these things; for by all these the nations are defiled, which I am casting out before you." (Leviticus 18:22-24).
"For this reason God gave them up to vile passions. For even their women exchanged the natural use for what is against nature. Likewise also the men, leaving the natural use of the woman, burned in their lust for one another, men with men committing what is shameful, and receiving in themselves the penalty of their error which was due." (Romans 1:26-27).
"as Sodom and Gomorrah, and the cities around them in a similar manner to these, having given themselves over to sexual immorality and gone after strange flesh, are set forth as an example, suffering the vengeance of eternal fire." (Jude 7)
"Now before they lay down, the men of the city, the men of Sodom, both old and young, all the people from every quarter, surrounded the house. And they called to Lot and said to him, “Where are the men who came to you tonight? Bring them out to us so that we can have sex with them." (Genesis 19:4-5)
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