Luke 13:22-24

Jesus journeyed on through cities and villages, teaching and making His way toward Jerusalem. And someone asked Him, “Lord, will only a few be saved [from the penalties of the last judgment]?” And He said to them, “Strive to enter through the narrow door [force aside unbelief and the attractions of sin]; for many, I tell you, will try to enter [by their own works] and will not be able.