For the longest time the sin of Sodom was clearly connected clearly with homosexuality. In the United States in particular we had laws against sodomy, which made homosexuality a crime. Most people, if asked today, would say the sin of Sodom and Gomorrah was homosexual behavior.
However, this assumption has been challenged of late. Bible scholars and students of the Bible have claimed that the sin of Sodom should not be linked with homosexuality.
The normal argument made against Sodom being an example of homosexual activity is that later Old Testament passages state a different reason for Sodom’s demise. Although most of the later Old Testament usage of Sodom is to illustrate how God will destroy a sinful nation, there are a few passages that speak of the sin of Sodom. One is Ezekiel 16:49, 50. It states that Sodom’s sin was pride and choosing not to take care of the poor and needy though they had the ability to do so. Another is Jeremiah 23:14, which states their sin was adultery, lying, and not repenting. A third is Isaiah 3:9, which states the sin is a lack of justice. The argument made from these passages is that the sin of Sodom is not homosexuality, but rather injustice, specifically toward the poor.