In a world much like the old Roman world full of sexual debauchery and violent entertainments, those who aspire to a cleaner way of life are attacked and vilified. This is because the Christian way is counter-cultural, it directly challenges those who want nothing less than to wallow in their animalistic pleasures.
Chaste conduct is one of the necessary and most recognizable signs of the substantial passage that takes place with baptism between the degraded and unworthy way of life typical of paganism and a new state of purity: it is a clear break between old habits and Paschal newness:Related Link: Shocking News: A Cardinal Sings the Praises of Orthodoxy ~ Chisea
"Just as you presented the parts of your bodies as slaves to impurity and to lawlessness for lawless ness, so now present them as slaves to righteousness for sanctification" (Romans 6:19).
"For the time that has passed is sufficient for doing what the Gentiles like to do, living in debauchery (en aselghèiais) (1 Peter 4:3).
It is not an obsessive sexual phobia or an excessive moralism that inspires this behavior. It is, rather, an unprecedented awareness of the demands of sanctification, which comes from having adhered to the thrice-holy God:
"This is the will of God, your holiness: that you refrain from immorality (apò tes pornèias), that each of you know how to acquire a wife for himself in holiness and honor, not in lustful passion as do the Gentiles who do not know God" (1 Thessalonians 4:3-5).
"God did not call us to impurity but to holiness. Therefore, whoever disregards this, disregards not a human being but God, who gives his holy Spirit to you" (1 Thessalonians 4:7-8).
Early Christianity felt that it was above all the sexual immorality of the Hellenistic world that deserved the name of impurity (akatharsìa) contrary to God.