Each of these sinful people hoped and dared to believe that it was not too late. Each of them was aware of the sins in their lives. They were certainly not very proud of their deeds, and the bitter tears shed by the sinful woman in Luke 7:36-50 are undeniable proof of this truth.
In the 21st century, people say that sexual immorality means intimate relationships in exchange for a sum of money. In fact, sexual immorality is any relationship outside of marriage, whether it's committed by a girl or a boy, once or several times, with the person you're engaged to or someone you met for the first time.
Sexual immorality is a sin against God.
Joseph states when he is urged by Potiphar's wife to sleep with her: “How could I … sin against God.” (Genesis 39:9) God created us and exhorted us to holiness, to the cleansing of our thoughts and bodies, and extramarital intimate relations are a disobedience to God's commandment and a defilement of God's wonderful creation.
Intimate relationships outside marriage are sin against the Holy Spirit.
In 1 Corinthians 6:12-20 we are told that our body is the Temple of the Holy Spirit and the members of Christ, and sexual immorality is a sin against the body. The author of the Corinthian epistle asks a rhetorical question that we should also ask ourselves: “Shall I than take the members of Christ and unite them with a prostitute?” And then he comes up with the answer: “Never!”