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 16:7-11.
Related Commentaries of Isaiah 1:21
Isaiah 1:21-23
21 How is the faithful city become an harlot! it was full of judgment; righteousness lodged in it; but now murderers.
22 Thy silver is become dross, thy wine mixed with water:
23 Thy princes are rebellious, and companions of thieves: every one loveth gifts, and followeth after rewards: they judge not the fatherless, neither doth the cause of the widow come unto them.