I have a question on being bisexual. Is it right? And who implants these feelings in your mind? Is it a sin to have sexual thoughts about the opposite sex? How can I turn away from this?
Basically the questions concerning bisexuality come down to two: 1) are homosexual acts right; and 2) is sex with a person to whom I am not married right? The first of these I have previously answered in at least one place. Go to What Does the Bible Say About..Forgiveness for Homosexuals, which lists passages showing that the Bible considers homosexual acts wrong. The second is answered at What Does the Bible Say About..Sex Before Marriage?.
Is it a sin to have sexual thoughts about the opposite sex? We all have thoughts that we donít want. Is it a sin to think angry thoughts when a driver cuts you off on the freeway? Is it a sin for a curse word to come unbidden to your mind if you donít say it? The main consideration is not whether it is a sin to think it, but whether you dwell on it. There is a big difference between thinking something and keeping thinking something. If you actively try to get rid of the thoughts, knowing them to be sinful or undesirable, then you are acting the way God would have you act. If you willingly allow the thoughts free reign in your mind, then you are flirting with disaster. I donít know of any passages that specifically say that brief thoughts are sinful. There is the passage in Proverbs 23:7 that says "as he thinketh within himself, so is he." But that is referring to one who continues to think thoughts that lead to action. When Jesus said that a man who lusted after a woman (or it would also apply to a man who lusted after a man) had already committed adultery in his mind (Matthew 5:28), he was really saying that the action follows the thought. So one who lets the thoughts of having sex with one of the same gender remain in his mind is in danger of committing the act itself.
Who plants these thoughts in your mind? Some would quickly answer that it is Satan, the devil. That may be partially true. "Be sober, be watchful: your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour." (1 Peter 5:8) He may have some power to initiate the thoughts. On the other hand, James says that the devil is not the responsible person, but the one thinking the thoughts. "Let no man say when he is tempted, I am tempted of God; for God cannot be tempted with evil, and he himself tempteth no man, but each man is tempted, when he is drawn away by his own lust, and enticed. Then the lust, when it hath conceived, beareth sin: and the sin, when it is fullgrown, bringeth forth death." (James 1:13-15) Ultimately it appears that we plant the thoughts in our own minds, and then when we let them grow and eventually act on them, then we suffer the results or our own thinking.
You ask how to turn away from this. I gave an answer at What Does the Bible Say About..Quitting a Particular Sin. A better resource would be the Christians No Longer Gay Living for God web site.
I pray that all this will help you. Remember also that sin, any sin, brings death. Remember also that when one puts on Christ by immersion in water and continues to walk in the light of his word, then his blood continues to cleanse from sin. (1 John 1:7) Outside of Christ, any sin is deadly. In Christ, any sin is forgivable, and forgiven upon asking for that forgiveness. Christians arenít perfect, but perfected by the Messiah.