Adam Clarke on Ezekiel 16:36

Thy filthiness was poured out - נחשתך nechushtech. As this word signifies a sort of metal, (brass), it is generally supposed to mean money. They had given money literally to these heathen nations to procure their friendship and assistance; but the word also means verdigris, the poisonous rust of copper or brass. It is properly translated in our version filthiness, poisonous filth. Does it not refer to that venereal virus which is engendered by promiscuous connexions?