The Bible consistently tells us that homosexual activity is a sin.
Genesis 19:1-13 NKJV
Now the two angels came to Sodom in the evening, and Lot was sitting in the gate of Sodom. When Lot saw them, he rose to meet them, and he bowed himself with his face toward the ground.  And he said, “Here now, my lords, please turn in to your servant’s house and spend the night, and wash your feet; then you may rise early and go on your way.” And they said, “No, but we will spend the night in the open square.”  But he insisted strongly; so they turned in to him and entered his house. Then he made them a feast, and baked unleavened bread, and they ate.  Now before they lay down, the men of the city, the men of Sodom, both old and young, all the people from every quarter, surrounded the house.  And they called to Lot and said to him, “Where are the men who came to you tonight? Bring them out to us that we may know them carnally.”  So Lot went out to them through the doorway, shut the door behind him,  and said, “Please, my brethren, do not do so wickedly!  See now, I have two daughters who have not known a man; please, let me bring them out to you, and you may do to them as you wish; only do nothing to these men, since this is the reason they have come under the shadow of my roof.”  And they said, “Stand back!” Then they said, “This one came in to stay here, and he keeps acting as a judge; now we will deal worse with you than with them.” So they pressed hard against the man Lot, and came near to break down the door.  But the men reached out their hands and pulled Lot into the house with them, and shut the door.  And they struck the men who were at the doorway of the house with blindness, both small and great, so that they became weary trying to find the door.  Then the men said to Lot, “Have you anyone else here? Son-in-law, your sons, your daughters, and whomever you have in the city-take them out of this place!  For we will destroy this place, because the outcry against them has grown great before the face of the LORD, and the LORD has sent us to destroy it.”
Leviticus 18:22 NKJV
You shall not lie with a male as with a woman. It is an abomination.
Websters definition of abomination is something that causes disgust or hatred.
1 : something abominable
2 : extreme disgust and hatred : loathing.
Synonyms: abhorrence, hate, anathema, antipathy, aversion, bête noire, detestation, execration
Leviticus 20:13 NKJV
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 1:26-32 NKJV
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.  And even as they did not like to retain God in their knowledge, God gave them over to a debased mind, to do those things which are not fitting;  being filled with all unrighteousness, sexual immorality, wickedness, covetousness, maliciousness; full of envy, murder, strife, deceit, evil-mindedness; they are whisperers,  backbiters, haters of God, violent, proud, boasters, inventors of evil things, disobedient to parents,  undiscerning, untrustworthy, unloving, unforgiving, unmerciful;  who, knowing the righteous judgment of God, that those who practice such things are deserving of death, not only do the same but also approve of those who practice them.
These verses of Scripture teach specifically that homosexuality is a result of denying and disobeying God.
When people continue in sin and unbelief, God “gives them over” to even more wicked and depraved sin in order to show them the futility and hopelessness of life apart from God.
1 Corinthians 6:9 proclaims that homosexual “offenders” will not inherit the kingdom of God.
1 Corinthians 6:9-11 NKJV
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,  nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners will inherit the kingdom of God.  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.
God does not create a person with homosexual desires. The Bible tells us that people become homosexuals because of sin (Romans 1:24-27) and ultimately because of their own choice.
Romans 1:24-27 NKJV
Therefore God also gave them up to uncleanness, in the lusts of their hearts, to dishonor their bodies among themselves,  who exchanged the truth of God for the lie, and worshiped and served the creature rather than the Creator, who is blessed forever. Amen.  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.
A person may be born with a greater susceptibility to homosexuality, just as some people are born with a tendency to violence and other sins. That does not excuse the person’s choosing to sin by giving in to sinful desires. If a person is born with a greater susceptibility to anger/rage, does that make it right for him to give into those desires? Of course not!
All sin is offensive to God and separates people from God. Homosexuality is just one of the many things listed in 1 Corinthians 6:9-10 that will keep a person from the kingdom of God.
According to the Bible, God’s forgiveness is just as available to a homosexual sin, as it is to an adulterer, idol worshipper, murderer, thief, liar, etc.
God also promises the strength for victory over sin, including homosexuality, to all those who will believe in Jesus Christ for their salvation.
1 Corinthians 6:11 NKJV
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.
2 Corinthians 5:17-19 NKJV
Therefore, if anyone is in Christ, he is a new creation; old things have passed away; behold, all things have become new.  Now all things are of God, who has reconciled us to Himself through Jesus Christ, and has given us the ministry of reconciliation,  that is, that God was in Christ reconciling the world to Himself, not imputing their trespasses to them, and has committed to us the word of reconciliation.
Philippians 4:13 NKJV
I can do all things through Christ who strengthens me.