Another common rendering of adikia is the translation iniquity. When the Lord banishes evildoers from His presence at the judgment, He calls them “all ye workers of iniquity” (Luke 13:27). Luke also uses the same word for the “unjust steward” (16:8), and in the parable of the unjust judge (18:6).
We get a glimpse of the range of this word through biblical applications. Paul sarcastically asks to be forgiven the “wrong” of not having been a burden to the Corinthians (2 Cor. 12:13). Judas purchased his field (through his agents, the leaders to whom he returned the bribe money), with his “reward of iniquity” (Acts 1:18). His iniquity was a high form of treachery. The apostle Peter sees right through Simon Magus, and dismisses him as being in the gall of bitterness and in the chains of “iniquity” (Acts 8:23). His sin was that of trying to buy the power of bestowing the Holy Spirit. The tongue is a fire, a “world of iniquity” (Jas. 3:6). The range is pretty broad — treason, simony, slander and libel.
Loves rejoices in truth, and refuses to rejoice in iniquity (1 Cor. 13:6). Everyone who wants to be called a Christian, naming the name of Christ, should show this desire by departing from iniquity (2 Tim. 2:19).