Variantly: (The verse speaks of one who passes his son or daughter (through the halves of a calf), thereby entering into a covenant (with idolatry), as it is written (Jeremiah 34:18) "the calf which they cut in two so as to pass between its halves." Variantly: "one who passes his son or daughter through fire": (The verse speaks of) one who cohabits with an Aramite woman and begets through her a son who is a foe of the L-rd.
"of divinations": to impose liability for each divination (in itself). What is a "diviner"? One who "divines" by holding his stick whether to go or not to go, viz. (Hosea 4:12) "My people consults its stick; its rod tells it (what to do)."