Those who meddle with astrologers and sorcerers (and like practices) put themselves on a collision course with God's judgment.
God knows everything, but this does not eliminate man’s responsibility to confess his sins. Failure to do so forfeits God’s practical forgiveness.
There are many things in this life that are not sinful in and of themselves, but when they are misused they can be deemed as sinful or harmful.
Most people view sin as a private or earthy matter. Yet, every sin is against the Lord. In truth, men can sin against the Father, the Son, and the Spirit.
Throughout man’s sordid history, people have mocked, rejected, and forsaken the Lord. They have chosen to look to gods that cannot save or help.