2 Corinthians 10:4-6
4 The weapons we fight with are not the weapons of the world. On the contrary, they have divine power to demolish strongholds. 5 We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take captive every thought to make it obedient to Christ. 6 And we will be ready to punish every act of disobedience, once your obedience is complete.
In any fight there must be a delineation of the opposing forces and what they stand for. When a man or woman is truly living out their faith and walking the witness of Jesus Christ the enemy in the fight is satan. The way satan attacks is through sin and temptation, which leads to sin.
The world (meaning society, satan and anything opposing to God) tells us to be inward focused and seek after that which satiates one's self. Christianity says to serve and love others, to place others before yourself. The word of God (Bible) says to remain pure sexually and to protect that purity (1 Corinthians 6:18-20) and to honor God with our bodies as a living sacrifice (Romans 12). Society says its just sex and to stop being so "up tight" about it. When this is said I realize that it is said out of a complete ignorance and misappropriation of one's focus.
So as Christians we must always be ready to fight. We must arm ourselves with love, authority of God's word and truth. We must never forget that this message that we live is ridiculous to those who don't know God.
1 Corinthians 1:18
For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.
So let us not be surprised and taken off the foundation that God has set us on when the world mocks the gospel, it's to be expected. Always love with a reckless abandonment and do not hold back. Let the light of God shine in your life (Matthew 5:14-16).