hello.
I've covered a youth speech on homosexuality at one time (years ago) & would have loved to share it with you- if only I could find the notes I prepared for it! Hah.
But even without the notes, I can say a few things that should help.
There are many places in the Bible that directly approach homosexuality.
Take Romans 1:24-28 for example:
"24Therefore God gave them over in the sinful desires of their hearts to sexual impurity for the degrading of their bodies with one another. 25They exchanged the truth of God for a lie, and worshiped and served created things rather than the Creator?-who is forever praised.
26Because of this, God gave them over to shameful lusts. Even their women exchanged natural relations for unnatural ones. 27In the same way the men also abandoned natural relations with women and were inflamed with lust for one another. Men committed indecent acts with other men, and received in themselves the due penalty for their perversion."
This verse alone describes homosexuality as a "pervesion", "shameful lust", "unnatural relation", and an "indecent act"
That, for some people, would be enough proof.
But still.
Some claim that the Bible doesn't exactly say homosexuality is wrong.
I have no idea why some people would say this when there are so many references to it, but just in case, read this:
http://www.faithfacts.org/christ-and-the-culture/gay-rights
It has many more verses and explains the common mistake in thinking that a homosexual is born that way & that is is supposedly only love.
God Bless.