John Calvin Commentary Ezekiel 13:12

"Lo, when the wall is fallen, shall it not be said unto you, Where is the daubing wherewith ye have daubed it?" — Ezekiel 13:12 (ASV)

He confirms the previous sentence, specifically, that the false prophets would be a laughing-stock to all when their prophecies and divinations failed, because the outcome would prove them to be liars. For when the city was taken, it became sufficiently clear that they were the devil’s ministers of deceit, for they were trained in wickedness and boldness when they invoked God’s name. The Prophet now teaches that a common proverb would arise when the wall fell; for by saying, shall it not be said to them?, he indicates that their folly and vanity would be completely exposed, so that this proverb would be common everywhere — Where is the daubing with which you daubed it?