I know there are a lot of verses, but here are just a few.
Leviticus 18:22 “You shall not lie with a male as with a woman. It is an abomination.”
Leviticus 20:13 “If a man lies with a male as he lies with a woman, both of them have committed an abomination. They shall surely be put to death. Their blood shall be upon them.”
Romans 1:26-27 “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.”