## is required to swear ##

AT: "someone requires him to swear" (See: [[rc://en/ta/man/translate/figs-activepassive]])

## on his own head ##

Here "head" refers to the whole person. AT: "on him" (See: [[rc://en/ta/man/translate/figs-metonymy]])

## the reward for his righteousness ##

AT: "what he deserves because of his innocence"