They built the high places of Baal in the Valley of the Son of Hinnom, to offer up their sons and daughters to Molech, though I DID NOT COMMAND THEM, NOR DID IT ENTER INTO MY MIND, THAT THEY SHOULD DO THIS ABOMINATION, to cause Judah to sin.
(following taken from WHAT DOES THE BIBLE SAY ABOUT CHILD SACRIFICE?; gotquestions.org)
... The Bible contains the heart-breaking tale of child sacrifice practiced in the name of Molech (also spelled Moloch or Molek), a god of the Ammonites. Molech worship was practiced by the Ammonites and Canaanites, who revered Molech as a protecting father figure. Images of Molech were made of bronze, and their outstretched arms were heated red-hot. Living children were then placed into the idol’s hands and died there or were rolled into a fire pit below. Some sources indicate a child might also be “passed through the fire” prior to the actual sacrifice in order to purify or baptize the child. Molech worship occurred in the Hinnom Valley near Jerusalem. Because of this, the valley became associated with the idea of Tophet, or hell (Isaiah 30:33; Jeremiah 19:12; Mark 9:45).
God prohibited Israel from child sacrifice in general and Molech worship in particular. Leviticus 20:2-5 states, “Say to the Israelites: ‘Any Israelite or any foreigner residing in Israel who sacrifices any of his children to Molek is to be put to death. The members of the community are to stone him. I myself will set my face against him and will cut him off from his people; for by sacrificing his children to Molek, he has defiled my sanctuary and profaned my holy name. If the members of the community close their eyes when that man sacrifices one of his children to Molek and if they fail to put him to death, I myself will set my face against him and his family and will cut them off from their people together with all who follow him in prostituting themselves to Molek.’” Many other Old Testament passages affirm God’s zero-tolerance for child sacrifice..... Today, child sacrifice is practiced throughout the world. There has been a resurgence of child sacrifice in Uganda. Witch doctors have been implicated in the mutilation and death of children who were killed in an effort to bring good fortune and wealth to those willing to pay for it. There is also a correlation between child sacrifice and modern-day abortion. Unprecedented numbers of children have been “sacrificed” at the hands of abortionists for the sake of convenience, immorality, or pride. Hundreds of thousands of babies have been killed so that their parents can maintain a certain lifestyle. God hates “hands that shed innocent blood” (Proverbs 6:17), and we can be sure that God will judge this horrendous sin....
There are several things that we must take away from this article and the scriptural passages: first GOD has never commanded us to kill our children; He does not require the sacrifice of our children. However, He has sacrificed His Son for us. Second, it is highly likely that the real reasons that people kill their children today are the same reasons that they killed children in the past—for perceived personal advantage; we have no good intentions here. Finally, GOD will judge the “horrendous sin” of killing our children. We CANNOT IGNORE THIS TERRIBLE SIN.