Isaiah 27:9
By this - By this manner of God's dealing with them. When - Which sin of Jacob's shall be purged, when he shall truly repent of all his sins, and especially of his idolatry. Altar - Their idolatrous altars. Possibly he may say the altar, with respect to that particular altar, which Ahaz had set upon the place of God's own altar; and this prophecy might be delivered in Ahaz's time, while that altar stood. Chalk - stones - When he shall break all those goodly altars in pieces. Not stand - Shall be thrown down with contempt.
