David admits that every human being stands guilty before the Lord on account of sin. It is clear from Scripture that sin touched everyone. See also Psalm 14. Not only are man's actions, thoughts and words totally and continually evil, but the whole intent and every intent behind man's actions, thoughts and words is only and continually evil. This does not only describe man at a certain stage in the course of his life, but it characterises fallen man from the day of his birth to the day of his death.
Scripture certainly uses powerful language to describe the extent of man's depravity.
What's more, what Scripture says concerning the extent of man's depravity applies to every individual. Paul then quotes a most condemning list of Old Testament texts which in no uncertain terms testify to the universality and depth of man's depravity. Nor Paul does not stop here. Not only must all people admit to the fact of being depraved, but all people must also admit the great depth of their depravity. So deeply has man fallen that all he can do is speak evil, deceive, lie, threaten, curse, hurt, kill, destroy.