They sacrificed their sons and daughters to demons. ¹ 

They sacrificed to demons, not God, to gods they had not known; to new gods who had recently come along, gods your ancestors ¹  had not known about.

So they must no longer offer ¹  their sacrifices to the goat demons, ²  acting like prostitutes by going after them. ³  This is to be a perpetual statute for them throughout their generations. ⁴