If love is the only thing that matters in a marriage, then people should be able to marry whom they love without being judged, or denied of marriage. It doesn't change, no matter what gender. Same sex marriage may be a sin in the Bible, but the Bible may not be some people's beliefs. The time has come to legalize same sex marriage in the United States.
First of all, same sex marriage isn't hurting anyone. It may actually be helping people. Some studies show that legalizing gay marriage will increase adoption rates for children, and hopefully society will realize it's wrong to judge people for whom they love. Some people may believe that it will confuse children about marriage, but it may help them understand that everyone is different and we have to accept them for who they are.
Even in the states where gay marriage is legal, gay couples don't always get the same benefits as other married couples. Why are they any different than anyone else? Denying them of marriage is the same kind of discrimination as being racist or sexist. It's completely wrong.
If it's legal for gay people to date, why can't they just get married? It's their choice. The law and society shouldn't get in their way. It's their choice to live the way they want to live. The First Amendment to the United States Constitution even says that we have freedom of belief. The amendment states, "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof." It's very important that we realize that we all have different beliefs and shouldn't be judged for that.