How do Christians in support of gay marriage interpret anti-gay Bible verses?

I don't want to spark a debate, but I'm curious how Christians in support of gay marriage interpret seemingly anti-gay Bible verses? See the following: **Leviticus 20:13** > If a man has sexual relations with a man as one does with a woman, both of them have done what is detestable. They are to be put to death; their blood will be on their own heads. **1 Corinthians 6:9-11** > Don't you realize that those who do wrong will not inherit the Kingdom of God? Don't fool yourselves. Those who indulge in sexual sin, or who worship idols, or commit adultery, or are male prostitutes, or practice homosexuality, or are thieves, or greedy people, or drunkards, or are abusive, or cheat people-none of these will inherit the Kingdom of God. Some of you were once like that. But you were cleansed; you were made holy; you were made right with God by calling on the name of the Lord Jesus Christ and by the Spirit of our God. **1 Timothy 1:8-10** > Now we know that the law is good, if one uses it lawfully, understanding this, that the law is not laid down for the just but for the lawless and disobedient, for the ungodly and sinners, for the unholy and profane, for those who strike their fathers and mothers, for murderers, the sexually immoral, men who practice homosexuality, enslavers, liars, perjurers, and whatever else is contrary to sound doctrine ...