Isaiah 1:21-23

Under these figures of speech, are represented the sad fall of our nature. It forms in language a beautiful, though in reality, an awful account. But, Reader, painful as it is to know, yet it is profitable, in order to lead the heart to Jesus. This is among the methods which the Holy Ghost is pleased to adopt, in bringing the soul to God in Christ. He first convinces of sin, and then of righteousness. I think that those parts of scripture are eminently blessed, which bring with them proofs of his divine teaching; and that, it is one and the same in both Testaments of God's word. John 16:7.