3 And he did what was right in the sight of Jehovah, according to all that David his father had done. 4 He removed the high places, and broke the columns, and cut down the Asherahs, and broke in pieces the serpent of brass that Moses had made; for to those days the children of Israel burned incense to it: and he called it Nehushtan.
Matthew Henry's Commentary on 2 Kings 18:3-4
Commentary on 2 Kings 18:1-8
(Read 2 Kings 18:1-8)
Hezekiah was a true son of David. Some others did that which was right, but not like David. Let us not suppose that when times and men are bad, they must needs grow worse and worse; that does not follow: after many bad kings, God raised one up like David himself. The brazen serpent had been carefully preserved, as a memorial of God's goodness to their fathers in the wilderness; but it was idle and wicked to burn incense to it. All helps to devotion, not warranted by the word of God, interrupt the exercise of faith; they always lead to superstition and other dangerous evils. Human nature perverts every thing of this kind. True faith needs not such aids; the word of God, daily thought upon and prayed over, is all the outward help we need.