This image of walking through a wide gate to destruction or a narrow gate to life represents how people live and the results of how they live. When you translate, use appropriate words for "wide" and "broad" that are as different as possible from "narrow" in order to emphasize the differences between the two sets of gates and ways.
This is an image of people traveling on a road and going through a gate into a kingdom. One kingdom is easy to enter; the other is hard to enter. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Possible meanings are 1) "the way" refers to the road that leads to the gate of a kingdom, or 2) the "the gate" and "the way" both refer to the entrance to the kingdom.
This abstract noun can be translated with a verb. Alternate translation: "to the place where people die" (See: [[rc://en/ta/man/translate/figs-abstractnouns]])