Sure? I thought I read that "lust in the heart" is sinful.
There needs to be a complete change of heart, and the Holy Spirit is up to the task. Religion won't change a man's heart.
“Sure? I thought I read that “lust in the heart” is sinful.”
I think it depends on how far you take it. Being tempted with anything is not a sin. For example Jesus was tempted by Satan. He rebuked the temptation and was therefor sinless.
Following up on the temptation, such as imagining yourself committing what has tempted you, is a sin.
You are correct.
When Jesus was giving His Sermon on the Mount in Matthew 5, he said that if a man looks on a woman with lust he has committed adultery. If we hate somebody we’ve committed murder.
Jeremiah 17:9 says “the heart is more deceitful than all else and is desperately sick; who can undersand it?” The desires of our heart are evil. And naturally inclined towards evil.
“Lust in the heart” is not the feeling of attraction, but the inward consent to a sin. “I would do it if I dared,” or “Hmm, wonder if I can get her drunk...” are examples of “lust in the heart.” Merely experiencing the attractiveness of a man or woman is not “lust.”
But the modern psychology, of course contradictory to the Word of God, is to separate being a homosexual from committing homosexual acts. Or, separating being “same-sex oriented” from the acts of sex with someone of the same sex. It is the “orientation” or the lust that leads to the act.
I have seen many reports now of parents defending their children for being “same-sex oriented” somehow, while saying that they would discourage the acts. Such parents are just setting their children up for the entire death style of sodomy.