Yea, they sacrificed their sons and their daughters - See 2 Kings 16:3; Ezekiel 16:20; Ezekiel 20:31; Isaiah 57:5.
Unto devils - Hebrew, שׁדים shêdiym. The Septuagint, δαιμονίοις daimoniois, “demons.” So the Vulgate, “daemoniis.” The word is used only in the plural number, and is applied to idols. It occurs only in this place, and in Deuteronomy 32:17. On the meaning of this, see the notes at 1 Corinthians 10:20.