Their heart is divided; now shall they be found faulty: he shall break down their altars, he shall spoil their images.
Their heart is divided - (1 Kings 18:21, "How long halt ye between two opinions? If the Lord be God, follow him; but if Baal, then follow him;" Matthew 6:24; James 4:8, "Purify your hearts, ye double-minded").
Now shall they be found faulty - "now" i:e., soon. He shall break down their altars - "He," Yahweh Himself: emphatic х huw' (H1931)]. Not the enemy, who is but God's instrument; but the Lord Himself (Deuteronomy 32:26-27).
Shall break down - "cut off," strictly used of cutting off the heads of the victims. Those altars, which were the scene of cutting off the victims' heads, shall be themselves cut off.