the iron entered into someone's soul

the iron entered into someone's soul

someone became deeply and permanently affected by imprisonment or ill-treatment. literary
This expression comes from a phrase in the Latin Vulgate version of the Bible, ferrum pertransit animam ejus , a mistranslation of the Hebrew which literally translates as ‘his person entered into the iron’, meaning ‘he was placed in fetters’.
See also: enter, iron, soul