Genesis 2:24 says "Therefore a man shall leave his father and his mother and hold fast to his wife, and they shall become one flesh." Jesus quoted this statement in Matthew 19:5 as referring to marriage and Paul quoted it in 1 Corinthians 6:16 as referring to the act of sexual intercourse. This shows that God intended for sexual activity to be limited to a man and woman who were married to each other. Since homosexual activity doesn't fit this description then it is against God's laws.
Quote by: Nightwriter
Romans 1:26,27 says
Is there anything at all about homosexuality in the New Testament?
For this reason God gave them up to dishonorable passions. For their women exchanged natural relations for those that are contrary to nature; [SIZE=2] [/SIZE]and the men likewise gave up natural relations with women and were consumed with passion for one another, men committing shameless acts with men and receiving in themselves the due penalty for their error.
I am a Christian and I agree with what the Bible says. First Corinthians 6:9-11 says
Are you a Christian? If you are, how do you feel about the Bible's take on gays? Do you agree? Do you disagree but adhere anyway to be a good Christian?
Do not be deceived: neither the sexually immoral, nor idolaters, nor adulterers, nor men who practice homosexuality,[SIZE=2] [/SIZE]nor thieves, nor the greedy, nor drunkards, nor revilers, nor swindlers will inherit the kingdom of God. [SIZE=2] [/SIZE]And such were some of you. But you were washed, you were sanctified, you were justified in the name of the Lord Jesus Christ and by the Spirit of our God.This teaches three things about homosexual action: It is a sin, it is on the same level of other sins and not particularly worse the the others, and like others sins it can be forgiven.
I have discussed this subject in more detail here:
Warning To Gays - Christian Doctrine Discussion, Debate Forums, Christian Blogs and Chat Rooms