תהילים נא:ה קבלה: זוהר

David also called the Evil Inclination by the name 'sin', as it is written, "and my sin is ever before me" (Tehilim 51:5). This is because it tempts man every day to sin before his Master. The Evil Inclination never leaves man, from the day of his birth. The Good Inclination comes to man only when he seeks purity.