When the Ephesians believed on Christ, they examined the moral nature of each aspect of their lives. This led them to burn their curious arts books.
God expects His people to avoid unholy practices (i.e., divination, observing of times, witchcraft, wizardry, necromancing) that ensnare the world.
Seeking counsel or instruction from spirits or from the deceased is a wicked practice and demands God's righteous judgment.
Many unsaved people practice astrology (i.e., horoscopes) and other unscriptural use of the signs in the heavens. Believers should reject these practices.
Christ was no thief, but He allowed Himself to be crucified with and for thieves. Why did He allow this? Love compelled Him to bear the sins of many.
The thief does not care for the well-being of those he victimizes. He cares for himself and only himself. He hurts and has no trouble hurting others.
Sin develops, plots, schemes, and finalizes its dastardly deeds within the heart of the guilty long before the sin manifests itself to the eyes of others.
Although the blood of Christ cleanseth from all sin, some things cannot merely be undone. With or without forgiveness, sin has certain consequences.
Sin is not to be considered a light matter. In other words, it is not to be mocked. Only a fool would demonstrate this kind of behaviour toward sin.
Many people choose to continue in sin thinking that the consequences are not mounting up. The scriptures indicate something quite different.