What the Bible says about We Are All Corrupt
(From Forerunner Commentary)
Psalm 14:1-3, which Paul quotes in Romans 3:10-12, contains direct and unambiguous statements on what man's nature is really like. We are all corrupt. No one—“not one”!—is good. The only thing that saves us is the blood of Christ. So Paul, in Romans 3:23, concludes: “For all have sinned and fall short of the glory of God.” This is just another way of saying that man's nature is “only evil continually.”
Richard T. Ritenbaugh
Are Humans Good or Evil?