Marriage should be considered honorable among all people and its sexual responsibilities should be faithfully kept. For God will judge [and condemn] those people who are sexually immoral and who are sexually unfaithful to their mates.

It has actually been reported [to me] that there is a case of sexual immorality among you that is unheard of, even among the [unconverted] Gentiles. One of you is having sex with his stepmother.

For certain men have secretly infiltrated [your ranks]; they are men who had been written about long ago that they should be judged [and condemned] for perverting the unearned favor of our God into [a license for] living unrestrained, indecent lives, and who deny [the identity and work of] our only Master and Lord, Jesus Christ.

For you [should] know this for certain: No sexually immoral or [morally] impure person, or greedy person, who is [the same as] an idol worshiper, has any inheritance in the kingdom of Christ and God.

So, put to death [i.e., stop practicing the desires of] your physical bodies [such as] sexual immorality, [moral] impurity, lust, evil desires and greed, which is [in reality] idolatry. For the wrath of God will come [upon disobedient people] for practicing such things.

For it is God's will that you should be dedicated to Him, [that is], you should avoid sexual immorality. Each of you should know how to control his own body in a dedicated and honorable way, not in passionate lust, as the [unconverted] Gentiles, who do not know God, do.read more.
And none of you should violate and exploit his brother [or sister] in such a matter. For the Lord will punish people for all these things, just as we told you before and warned you.

So also, in a similar way, Sodom and Gomorrah, and their surrounding towns, which had abandoned themselves to sexual immorality and [sexually] perverted behavior, serve as an example [of people] who [will] suffer the punishment of never ending fire.

But the place for cowards, and unbelievers, and disgusting people [i.e., because of their terrible sins], and murderers, and sexually immoral people, and sorcerers, and idolaters, and all liars, will be the lake that burns with fire and sulphur. This is the second death."

On the outside [of the city] are the dogs [Note: This probably refers to people who practiced sexual perversions. See Deut. 23:17] and the sorcerers, and the sexually immoral people, and the murderers, and the idolaters and every person who loves and practices falsehood.

So, God allowed [or, abandoned] them to have the impure desires of their hearts, and to [practice] degrading behavior with their bodies among themselves. For they exchanged God's truth for the [devil's] lie, and worshiped and served what was created instead of the Creator, who is to be praised forever. May it be so. For this reason God allowed [or, abandoned] them to [practice] degrading passions; for their women exchanged the natural function [i.e., of sex] for what is against nature [i.e., lesbianism].read more.
And men did the same thing, leaving the natural function [i.e., of sex] with women, and burning in their desire for each other. Men committed indecent [sexual] acts with other men [i.e., homosexuality], and [so] brought on themselves the penalty they deserved for this perversion.