What the Bible says -
9...Are we better than they? Not at all. For we have previously charged both Jews and Greeks that they are all under sin.
10 As it is written: "There is none righteous, no, not one;
11 There is none who understands; There is none who seeks after God.
12 They have all turned aside; They have together become unprofitable; There is none who does good, no, not one."