Job 38:20 KJV

That thou shouldest take it to the bound thereof, and that thou shouldest know the paths to the house thereof?
Job 38:20, King James Version

In context

19 Where is the way where light dwelleth? and as for darkness, where is the place thereof,

20 That thou shouldest take it to the bound thereof, and that thou shouldest know the paths to the house thereof?

21 Knowest thou it, because thou wast then born? or because the number of thy days is great?