When I say to the righteous that he shall surely live, but he trusts in his own righteousness and commits iniquity, none of his righteous works shall be remembered; but because of the iniquity that he has committed, he shall die. Again, when I say to the wicked, ‘You shall surely die,’ if he turns from his sin and does what is lawful and right, if the wicked restores the pledge, gives back what he has stolen, and walks in the statutes of life without committing iniquity, he shall surely live; he shall not die. None of his sins which he has committed shall be remembered against him; he has done what is lawful and right; he shall surely live. Ezekiel 33:13-16

IN SHORT:
When the righteous turns from his righteousness and commits iniquity, he shall die because of it.

But when the wicked turns from his wickedness and does what is lawful and right, he shall live because of it. Ezekiel 33:18-19