Romans 3
9 What then? 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.”
13 “Their throat is an open [d]tomb;
With their tongues they have practiced deceit”;
“The poison of asps is under their lips”;
14 “Whose mouth is full of cursing and bitterness.”
15 “Their feet are swift to shed blood;
16 Destruction and misery are in their ways;
17 And the way of peace they have not known.”
18 “There is no fear of God before their eyes.”

There has never been a truly righteous man apart from Jesus Christ. “Even Adam was not righteous: he was innocent – not knowing good and evil.” (Newell)

Without the saving power of Jesus Christ we are all evil at our core. This is why there is only one way to redemption. It is impossible on our own to create a path to salvation.