What does the Bible say about inheriting eternal life?

In Mark 10:17-31, a young rich man approaches Jesus, asking what he must do to inherit eternal life. Jesus points him to the commandments, highlighting that mere outward adherence is insufficient for salvation. The young man believes he has kept all the commandments but still feels something is lacking, which shows that even moral living cannot secure eternal life. Ultimately, Jesus reveals that true discipleship involves sacrificing everything for Him, highlighting that salvation is a work of God alone and not based on human effort or righteousness.