Answer:
Homosexuality, Lust and Idol worship
Explanation:
Some of the key terms
Dishonorable Passions- idolatry which is a pagan practice, lust and lies.
Natural Relations- men and women divorced themselves of heterosexuality.
Unnatural Relations- homosexuality of men and consumed in passion for one another, same sex, which is contrary to their natural relations
God prohibits idol worship like that prevalent in Pagan culture and considers it as a dishonorable passion. Another immoral act is the homosexual desires and activities, God has left it to our actions so as to test whether we adhere to the true teachings or indulge in our lust. It lead women into sexual relationships with other women, and men into lustful relations with other men. The demand of the flesh becomes only priority focused on sexual gratification without shame. Spiritual awareness gets denied due to our actions.
Paul sees homosexual behavior as licentious and denial of God ( both his Presence and purpose of life ). Homosexual behavior is immoral, selfish and licentious without any true sense of love.
Lastly, he says, such choices shall have consequences. They will live unhappy and unfulfilled lives due to their own errors. God is not punishing them rather they themselves are.