A complete surrender to idolatry shatters every boundary of faith and morality. When the service of God is abandoned, it paves the way for a descent into cruel rituals and dark spiritual forces. This tragic decline involves horrific acts, such as sacrificing children to the idol Molech [מצודת דוד].
Alongside these cruelties, there is a deep reliance on witchcraft and the occult [מצודת דוד]. These practices include attempting to predict the future by observing the shapes of clouds or the changing of the seasons [ביאור שטיינזלץ]. The pursuit of hidden knowledge also extends to summoning the spirits of the dead in a desperate bid to uncover what lies ahead [ביאור שטיינזלץ].
The original Hebrew text describing these occult practices contains an unusual, additional letter [מנחת שי]. This subtle addition is intentional, serving to emphasize the sheer volume of the wickedness. It reveals that the sinner continuously multiplied his evil acts, deliberately piling new sins on top of the idols he had already built [רש״י]. Ultimately, this overwhelming accumulation of dark practices is designed to anger God in the most direct and offensive manner possible.