Yet if thou warn the wicked, and he turn not from his wickedness, nor from his wicked way, he shall die in his iniquity; but thou hast delivered thy soul.
If ... he turn not from his wickedness, nor from his wicked way. "Wickedness" and "wicked way" express internal wickedness of heart and external wickedness of the life respectively.
Thou hast delivered thy soul - (Isaiah 49:4-5; Acts 20:26, "I am pure from the blood of all men, for I have not shunned to declare unto you all the counsel God").