This can be stated in active form. AT: "someone requires him to swear an oath" (See: [[rc://en/ta/man/translate/figs-activepassive]])
# this house
This refers to the temple.
# bringing what he has done upon his own head
To bring someone's conduct on him represents punishing him for his bad conduct. AT: "punishing him as he deserves" (See: [[rc://en/ta/man/translate/figs-metaphor]])
# upon his own head
Here the "head" refers to the whole person. AT: "on him" (See: [[rc://en/ta/man/translate/figs-synecdoche]])