I have been asked more than once, even by homosexuals, if homosexuality is the unforgivable sin. What follows is a concise and Biblical answer to that question.
The Bible declares all human beings are sinners (“For all have sinned and come short of the glory of God.” Romans 3:23). Homosexuality is not the unforgivable sin. However, homosexuality is condemned by God in the Bible just as He speaks against adultery, fornication, envy, hypocrisy, gluttony, covetousness, malice, laziness, gossip, and a lot of other destructive behavior. That is precisely what sin is: destructive thinking and behavior, primarily against God, but mostly against ourselves and those around us. To sin is to miss the mark, to cross the line, to violate God´s commandments; it means knowing how to do what is right, and then not doing it. When engineers design and build a train, that train is designed and built to move freely while moving on rails. However, if that train derails, we are all too familiar with the destruction it can cause, not only to property but more importantly to human life. We humans were designed by God to function at our best when we live according to his Word, by his instructions. He is our designer and maker; therefore he knows how we function best and how to get us back “on track” when we derail.
By the way, denying the existence of God may be convenient to some, but does not make Him disappear or make His existence untrue, as denying the law of gravity does not invalidate its effects. Who would jump from the rooftop of a 10 story building after saying emphatically that the law of gravity is a lie and has no effect? Only a fool or a crazy person would do such a thing!
The Bible does speak plenty about homosexuality (Old and New Testaments). Read the more than 800 commandments in the books of Exodus, Leviticus and Deuteronomy, in the Old Testament, where God speaks clearly against sexual relations with people of the same sex (homosexuality and lesbianism) and with animals (bestiality). Read also Genesis chapters 13, 18 and 19, where two cities, Sodom and Gomorrah (from which comes the term “sodomite”, meaning a male who engages in anal copulation with another male) were destroyed because most of its inhabitants practiced homosexuality and did not turn away from their sin. I am sure there were other sins they committed that needed repentance on their part, however this was the one sin that God singled out as the main cause for destroying these two cities. You see, they were so perverted and their minds so twisted that they were calling what is good evil and what is evil good, a lot like what is happening today in America and all over the world.
An Unrepentant Heart towards God: the Only Unforgivable Sin
An unrepentant heart towards God is the only unforgivable sin, because God will not force us to change our minds and our attitude towards Him. Also read the book of Romans in the New Testament (chapter 1, verses 18-32) and also 1 Corinthians 6:9-11. What applied to male homosexual relations also applied to female homosexual relations, called today lesbianism. It is mentioned in the New Testament in Romans 1:26-32:
“For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature: And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompense of their error which was meet. And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient; Being filled with all unrighteousness, fornication, wickedness, covetousness, maliciousness; full of envy, murder, debate, deceit, malignity; whisperers, Backbiters, haters of God, despiteful, proud, boasters, inventors of evil things, disobedient to parents, Without understanding, covenant breakers, without natural affection, implacable, unmerciful: Who knowing the judgment of God, that they which commit such things are worthy of death, not only do the same, but have pleasure in them that do them.”
Finally, when the hypocritical religious leaders brought to Christ a woman caught in the act of adultery, he told them that he among them who was without sin could cast the first stone. All left but Christ and the woman. “He asked her: Where are those who accused you? Has no man condemned you? The woman replied: No man, Lord. And Jesus told her: Neither do I condemn you. GO AND SIN NO MORE.”
Christ did not judge her, because he loved her as a person, the same way He loves every human being. However, He told her to go and SIN NO MORE. That is the essence of true repentance. Asking God to forgive us and then continuing to do the same thing over and over is not true repentance. True repentance means there is a change of mind and heart that leads to a change of conduct. We all have sinned, but we can find true forgiveness, love, peace of mind and true fulfillment in Him who came to die for our sins, the just for the unjust. Christ said: “Truly, truly I say onto you, he that hears my words and believes in Him that sent me, has everlasting life, and shall not be condemned, but is passed from death onto life” (John 5:24).
Guido F. Castellanos
Judaism’s Sexual Revolution: Why Judaism (and then Christianity) Rejected Homosexuality