What does the Bible say about man's true nature?

Scripture reveals that all nations and individuals before God are as nothing, as stated in Isaiah 40:17, which says, 'All nations before him are as nothing; and they are counted to him less than nothing, and vanity.' This stark depiction underscores a proper view of humanity's worth compared to the Creator. Moreover, David and Job express similar sentiments, recognizing that our righteousness and worth in light of God is merely 'filthy rags' (Isaiah 64:6). Through these scriptures, we are reminded that human pride is misplaced and we must humble ourselves to understand our true condition before God.