Love does not rejoice in iniquity. I Corinthians 13:6
The Greek word for iniquity in this verse of scripture speaks of wrongfulness of ones character, where in other references the word denotes evil or wickedness. As believers our character is supposed to be free from wrongful behavior and be pure and holy, washed from the effects of sin by the blood of the Lord Jesus!
The scriptures warn us not to call evil good or to call good evil but the world today is a polluted mixture of people who don't know how to discern good from the reality of evil. If it feels good, do it, is the world's motto, as is another phrase, "Carpe Diem" or to seize the day which is actually defined as enjoying the present without concern for the future.
To rejoice with the world in iniquity is to agree with the devil, becoming one with unbelief and the outcome is the beginning of a heart hardened by the deceitfulness of sin, falling away from the purity and devotion of the Lord in which people become like a dog that returns to his vomit!
Adulterers and adulteresses! Do you not know that friendship with the world is enmity (ill will or mutual hatred) with God? Whoever therefore wants to be a friend of the world makes himself an enemy of God. James 4:4
Your servant in Christ, Tim Laughlin