I can give you all the verses you need that states that homosexuality is a sin but others have done that in this thread and your other one about homosexuality. I will give you my testimony:
There is not a day that goes by that I don't have a gay thought. Now, I don't physically act on them or am attracted to girls, however, the thoughts still torment me. I have never had a boyfriend or any real close friends for that matter or a good father figure besides God. So that may be why these thought are plaguing me. Either way, they are very lustful thoughts which is that the real root of the problem.
Lust is just awful. It drills into the brain and heart and won't let go. It can lead your thoughts into every which way: opposite sex, same sex, even animals! Lust may come because of bad experiences, growing up with lust around you, loneliness, whatever the reason is it needs to be repented of. Run to Jesus when the thoughts come and don't look back. Pray and think of Him.
God won't take the temptations away. I will probably have to deal with lustful thoughts, which includes homosexual thoughts, my entire life but God is there. God said he will be with us when we walk through the valley of the shadow of death; he never said he would take us out of it. The closer I am with Christ the less lustful thoughts are tempting to me though they may come at me more often because satan sees any Christian who is close with Christ as a threat.
People are not born gay; people are born sinners. Homosexuality is a temptation that we choose to follow. Temptation is not a sin but following that temptation which leads to sin is. Jesus was tempted but never sinned. We choose to lie, steal, not follow God with all of our heart, mind and soul and yet we are incapable of not doing those things (sin in general).
Fleeing homosexual thoughts are hard for some people. I bet though that ALL people have faced homosexual temptations in the deepest perverted part of there mind. Some people are totally disgusted by it and don't think of it again, others sometimes keep going with those temptations and that is where the devil gets a foothold. It is the same way with any sin. Satan will get you with what ever temptation he can throw at you to get you to sin. With me, its lustful and homosexual thoughts, sometimes cussing, pride, hate, lying, and others I probably don't realize.
Every one sins, what matters if you have come to Jesus in repentance, believe that He is God, died on the cross and resurrected and is able to cleanse us of the ultimate consequences of our sins (hell) (sanctification too).
The point: everyone sins and is tempted with different things. We are all in the same boat. The question is: are we going to accept Salvation through Jesus or not?