The story of the Rich Young Ruler is found in the New Testament of the Bible, specifically in the books of Matthew, Mark, and Luke. It tells of a wealthy young man who approaches Jesus to ask how he can inherit eternal life. Jesus tells him to follow the commandments, which the young man claims to have kept since his youth. When Jesus instructs him to sell all his possessions and give to the poor, the young man becomes sad because he is very wealthy. This story illustrates the challenges of prioritizing spiritual wealth over material wealth and emphasizes the difficulty for the rich to enter the Kingdom of God.