2 Esdras 7:4-14

4 but it has an entrance set in a narrow place, so that it is like a river.
5 If there are those who wish to reach the sea, to look at it or to navigate it, how can they come to the broad part unless they pass through the narrow part?
6 Another example: There is a city built and set on a plain, and it is full of all good things;
7 but the entrance to it is narrow and set in a precipitous place, so that there is fire on the right hand and deep water on the left.
8 There is only one path lying between them, that is, between the fire and the water, so that only one person can walk on the path.
9 If now the city is given to someone as an inheritance, how will the heir receive the inheritance unless by passing through the appointed danger?"
10 I said, "That is right, lord." He said to me, "So also is Israel's portion.
11 For I made the world for their sake, and when Adam transgressed my statutes, what had been made was judged.
12 And so the entrances of this world were made narrow and sorrowful and toilsome; they are few and evil, full of dangers and involved in great hardships.
13 But the entrances of the greater world are broad and safe, and yield the fruit of immortality.
14 Therefore unless the living pass through the difficult and futile experiences, they can never receive those things that have been reserved for them.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.