Homosexuals are deceived if they think they find in Scripture that their lifestyle is okay with God, and that they cannot change. This list of sins (which encompass most, if not all, of the Ten Commandments) makes it clear who will not be included in the kingdom of God. However, Paul says to those who are now believers, “And such were some of you” (v. 11). No matter what their sins, God can wash sinners clean and make them righteous in His sight. See Jude 7.
People often ask how to respond to those who are homosexuals, and yet consider themselves to be Christians. While a fornicator, a homosexual, an adulterer, a thief, and liar can become a Christian, it is important to understand that they cannot remain in their sins. If someone does, he is simply a pretender (a hypocrite). To be a Christian, you must stop your sinful lifestyle, commonly called “repentance.”
So, how do you tell someone that, without causing undue offense? I would witness to him using God’s Law (the Ten Commandments). I wouldn’t mention the homosexual issue until he is humbled, and sin is seen in its true light. There’s a very good reason for this. No proud person can see the nature of his own sins. He is blinded by pride. If you have done marriage counseling, you will know this to be true. If there is no humility, there won’t be an open ear to reason. So the Law should be used to humble the human heart, show sin in its true light, and hopefully show the person his error, and his great danger.
1 Corinthians 6:9 Do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived. Neither fornicators, nor idolaters, nor adulterers, nor homosexuals, nor sodomites, 10 nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners will inherit the kingdom of God. 11 And such were some of you. But you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus and by the Spirit of our God.