minimus,
Maybe you could talk to her from the perspective of whether or not Jehovah desires human sacrifices. I've used the passages in Jeremiah 7 regarding how Judah received Jehovah's judgement based on the fact that they were offering human sacrifices.
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Rbi8 Jeremiah 7:21-22 ***"This is what Jehovah of armies, the God of Israel, has said, ‘Add those whole burnt offerings of YOURS to YOUR sacrifices and eat flesh. 22 For I did not speak with YOUR forefathers, nor did I command them in the day of my bringing them out from the land of Egypt concerning the matters of whole burnt offering and sacrifice.
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Rbi8 Jeremiah 7:27-31 *** 27
"And you must speak to them all these words, but they will not listen to you; and you must call to them, but they will not answer you.
28 And you must say to them, ‘This is the nation whose people have not obeyed the voice of Jehovah its God, and have not taken discipline. Faithfulness has perished, and it has been cut off from their mouth.’
29 "Shear off your uncut hair and throw [it] away, and upon the bare hills raise a dirge, for Jehovah has rejected and will desert the generation with which he is furious. 30 ‘For the sons of Judah have done what is bad in my eyes,’ is the utterance of Jehovah. ‘They have set their disgusting things in the house upon which my name has been called, in order to defile it. 31 And they have built the high places of To´pheth, which is in the valley of the son of Hin´nom, in order to burn their sons and their daughters in the fire, a thing that I had not commanded and that had not come up into my heart.’
If the sacrifice of children was something that Jehovah found so repugnant and disgusting so that it caused him to destroy Judah, wouldn't he feel the same way about the sacrifice of children even now, since he is the god whose standards do not change? Would it matter if the sacrifice was a "whole burnt offering" on the altar of Molech or a death in an emergency room for lack of a blood transfusion? Either way, the people performing those sacrifices believed they were doing the right thing, but is it really what Jehovah wants?